Home / 431,796,345.70-647,694,518.55-286,394,088.10

Finding the Fourth Proportional to 431,796,345.70, 647,694,518.55 and 286,394,088.10

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Solution

The fourth proportional to 431,796,345.70, 647,694,518.55 and 286,394,088.10 is: 429,591,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,345.70 : 647,694,518.55 = 286,394,088.10 : x
  2. Step 2: Convert to fraction form
    431,796,345.70/647,694,518.55 = 286,394,088.10/x
  3. Step 3: Cross multiply
    431,796,345.70x = 647,694,518.55 × 286,394,088.10
  4. Step 4: Simplify right side
    431,796,345.70x = 185,495,881,007,495,776
  5. Step 5: Solve for x
    x = 185,495,881,007,495,776/431,796,345.70
  6. Step 6: Final answer
    x = 429,591,132.15

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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.