Home / 308,852,320.80-463,278,217.68-78,821,387.04

Finding the Fourth Proportional to 308,852,320.80, 463,278,217.68 and 78,821,387.04

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Solution

The fourth proportional to 308,852,320.80, 463,278,217.68 and 78,821,387.04 is: 118,232,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,852,320.80 : 463,278,217.68 = 78,821,387.04 : x
  2. Step 2: Convert to fraction form
    308,852,320.80/463,278,217.68 = 78,821,387.04/x
  3. Step 3: Cross multiply
    308,852,320.80x = 463,278,217.68 × 78,821,387.04
  4. Step 4: Simplify right side
    308,852,320.80x = 36,516,231,702,956,656
  5. Step 5: Solve for x
    x = 36,516,231,702,956,656/308,852,320.80
  6. Step 6: Final answer
    x = 118,232,013.31

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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.