Home / 542,779,437.26-749,199,378.95-469,230,087.34

Finding the Fourth Proportional to 542,779,437.26, 749,199,378.95 and 469,230,087.34

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Solution

The fourth proportional to 542,779,437.26, 749,199,378.95 and 469,230,087.34 is: 647,679,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,779,437.26 : 749,199,378.95 = 469,230,087.34 : x
  2. Step 2: Convert to fraction form
    542,779,437.26/749,199,378.95 = 469,230,087.34/x
  3. Step 3: Cross multiply
    542,779,437.26x = 749,199,378.95 × 469,230,087.34
  4. Step 4: Simplify right side
    542,779,437.26x = 351,546,890,020,144,448
  5. Step 5: Solve for x
    x = 351,546,890,020,144,448/542,779,437.26
  6. Step 6: Final answer
    x = 647,679,086.36

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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.