Home / 319,360,121.28-478,967,904-146,670,920.64

Finding the Fourth Proportional to 319,360,121.28, 478,967,904 and 146,670,920.64

Calculator

Solution

The fourth proportional to 319,360,121.28, 478,967,904 and 146,670,920.64 is: 219,973,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,360,121.28 : 478,967,904 = 146,670,920.64 : x
  2. Step 2: Convert to fraction form
    319,360,121.28/478,967,904 = 146,670,920.64/x
  3. Step 3: Cross multiply
    319,360,121.28x = 478,967,904 × 146,670,920.64
  4. Step 4: Simplify right side
    319,360,121.28x = 70,250,663,436,691,128
  5. Step 5: Solve for x
    x = 70,250,663,436,691,128/319,360,121.28
  6. Step 6: Final answer
    x = 219,973,186.24

Related Problems

Find fourth proportional to 159,680,060.64, 239,483,952 and 73,335,460.32
Half scale
Find fourth proportional to 638,720,242.56, 957,935,808 and 293,341,841.28
Double scale
Find fourth proportional to 319,360,122.28, 478,967,905.50 and 146,670,921.64
Similar ratio
Find fourth proportional to 479,040,181.92, 718,451,856 and 220,006,380.96
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.