Home / 1,007,934,526.62-1,390,878,619.61-561,878,159.18

Finding the Fourth Proportional to 1,007,934,526.62, 1,390,878,619.61 and 561,878,159.18

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Solution

The fourth proportional to 1,007,934,526.62, 1,390,878,619.61 and 561,878,159.18 is: 775,352,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,934,526.62 : 1,390,878,619.61 = 561,878,159.18 : x
  2. Step 2: Convert to fraction form
    1,007,934,526.62/1,390,878,619.61 = 561,878,159.18/x
  3. Step 3: Cross multiply
    1,007,934,526.62x = 1,390,878,619.61 × 561,878,159.18
  4. Step 4: Simplify right side
    1,007,934,526.62x = 781,504,318,419,522,432
  5. Step 5: Solve for x
    x = 781,504,318,419,522,432/1,007,934,526.62
  6. Step 6: Final answer
    x = 775,352,265.23

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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.