Home / 485,162,557.60-727,743,836.40-472,407,973.60

Finding the Fourth Proportional to 485,162,557.60, 727,743,836.40 and 472,407,973.60

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Solution

The fourth proportional to 485,162,557.60, 727,743,836.40 and 472,407,973.60 is: 708,611,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,162,557.60 : 727,743,836.40 = 472,407,973.60 : x
  2. Step 2: Convert to fraction form
    485,162,557.60/727,743,836.40 = 472,407,973.60/x
  3. Step 3: Cross multiply
    485,162,557.60x = 727,743,836.40 × 472,407,973.60
  4. Step 4: Simplify right side
    485,162,557.60x = 343,791,991,053,613,952
  5. Step 5: Solve for x
    x = 343,791,991,053,613,952/485,162,557.60
  6. Step 6: Final answer
    x = 708,611,960.40

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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.