Home / 418,566,549.20-627,849,823.80-127,431,359.60

Finding the Fourth Proportional to 418,566,549.20, 627,849,823.80 and 127,431,359.60

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Solution

The fourth proportional to 418,566,549.20, 627,849,823.80 and 127,431,359.60 is: 191,147,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,566,549.20 : 627,849,823.80 = 127,431,359.60 : x
  2. Step 2: Convert to fraction form
    418,566,549.20/627,849,823.80 = 127,431,359.60/x
  3. Step 3: Cross multiply
    418,566,549.20x = 627,849,823.80 × 127,431,359.60
  4. Step 4: Simplify right side
    418,566,549.20x = 80,007,756,671,454,432
  5. Step 5: Solve for x
    x = 80,007,756,671,454,432/418,566,549.20
  6. Step 6: Final answer
    x = 191,147,039.40

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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.