Home / 591,264,284.42-815,666,898.31-421,755,987.62

Finding the Fourth Proportional to 591,264,284.42, 815,666,898.31 and 421,755,987.62

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Solution

The fourth proportional to 591,264,284.42, 815,666,898.31 and 421,755,987.62 is: 581,825,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,264,284.42 : 815,666,898.31 = 421,755,987.62 : x
  2. Step 2: Convert to fraction form
    591,264,284.42/815,666,898.31 = 421,755,987.62/x
  3. Step 3: Cross multiply
    591,264,284.42x = 815,666,898.31 × 421,755,987.62
  4. Step 4: Simplify right side
    591,264,284.42x = 344,012,398,264,360,768
  5. Step 5: Solve for x
    x = 344,012,398,264,360,768/591,264,284.42
  6. Step 6: Final answer
    x = 581,825,094.68

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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.