Home / 70,128,000.20-105,192,000.30-53,121,888.20

Finding the Fourth Proportional to 70,128,000.20, 105,192,000.30 and 53,121,888.20

Calculator

Solution

The fourth proportional to 70,128,000.20, 105,192,000.30 and 53,121,888.20 is: 79,682,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,128,000.20 : 105,192,000.30 = 53,121,888.20 : x
  2. Step 2: Convert to fraction form
    70,128,000.20/105,192,000.30 = 53,121,888.20/x
  3. Step 3: Cross multiply
    70,128,000.20x = 105,192,000.30 × 53,121,888.20
  4. Step 4: Simplify right side
    70,128,000.20x = 5,587,997,679,470,967
  5. Step 5: Solve for x
    x = 5,587,997,679,470,967/70,128,000.20
  6. Step 6: Final answer
    x = 79,682,832.30

Related Problems

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.