Home / 674,123,902.80-1,011,941,681.40-521,446,808.40

Finding the Fourth Proportional to 674,123,902.80, 1,011,941,681.40 and 521,446,808.40

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Solution

The fourth proportional to 674,123,902.80, 1,011,941,681.40 and 521,446,808.40 is: 782,754,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,123,902.80 : 1,011,941,681.40 = 521,446,808.40 : x
  2. Step 2: Convert to fraction form
    674,123,902.80/1,011,941,681.40 = 521,446,808.40/x
  3. Step 3: Cross multiply
    674,123,902.80x = 1,011,941,681.40 × 521,446,808.40
  4. Step 4: Simplify right side
    674,123,902.80x = 527,673,760,052,959,616
  5. Step 5: Solve for x
    x = 527,673,760,052,959,616/674,123,902.80
  6. Step 6: Final answer
    x = 782,754,858.36

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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.