Home / 539,011,637.40-808,517,456.10-266,325,979.80

Finding the Fourth Proportional to 539,011,637.40, 808,517,456.10 and 266,325,979.80

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Solution

The fourth proportional to 539,011,637.40, 808,517,456.10 and 266,325,979.80 is: 399,488,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,011,637.40 : 808,517,456.10 = 266,325,979.80 : x
  2. Step 2: Convert to fraction form
    539,011,637.40/808,517,456.10 = 266,325,979.80/x
  3. Step 3: Cross multiply
    539,011,637.40x = 808,517,456.10 × 266,325,979.80
  4. Step 4: Simplify right side
    539,011,637.40x = 215,329,203,681,236,000
  5. Step 5: Solve for x
    x = 215,329,203,681,236,000/539,011,637.40
  6. Step 6: Final answer
    x = 399,488,969.70

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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.