Home / 627,271,020.68-865,816,484.70-418,426,665.10

Finding the Fourth Proportional to 627,271,020.68, 865,816,484.70 and 418,426,665.10

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Solution

The fourth proportional to 627,271,020.68, 865,816,484.70 and 418,426,665.10 is: 577,550,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,271,020.68 : 865,816,484.70 = 418,426,665.10 : x
  2. Step 2: Convert to fraction form
    627,271,020.68/865,816,484.70 = 418,426,665.10/x
  3. Step 3: Cross multiply
    627,271,020.68x = 865,816,484.70 × 418,426,665.10
  4. Step 4: Simplify right side
    627,271,020.68x = 362,280,704,281,034,304
  5. Step 5: Solve for x
    x = 362,280,704,281,034,304/627,271,020.68
  6. Step 6: Final answer
    x = 577,550,520.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.