Home / 314,791,867.20-472,187,800.80-99,353,121.60

Finding the Fourth Proportional to 314,791,867.20, 472,187,800.80 and 99,353,121.60

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Solution

The fourth proportional to 314,791,867.20, 472,187,800.80 and 99,353,121.60 is: 149,029,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,791,867.20 : 472,187,800.80 = 99,353,121.60 : x
  2. Step 2: Convert to fraction form
    314,791,867.20/472,187,800.80 = 99,353,121.60/x
  3. Step 3: Cross multiply
    314,791,867.20x = 472,187,800.80 × 99,353,121.60
  4. Step 4: Simplify right side
    314,791,867.20x = 46,913,331,990,918,976
  5. Step 5: Solve for x
    x = 46,913,331,990,918,976/314,791,867.20
  6. Step 6: Final answer
    x = 149,029,682.40

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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.