Home / 144,642,779.16-199,609,665.17-81,931,897.95

Finding the Fourth Proportional to 144,642,779.16, 199,609,665.17 and 81,931,897.95

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Solution

The fourth proportional to 144,642,779.16, 199,609,665.17 and 81,931,897.95 is: 113,067,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,642,779.16 : 199,609,665.17 = 81,931,897.95 : x
  2. Step 2: Convert to fraction form
    144,642,779.16/199,609,665.17 = 81,931,897.95/x
  3. Step 3: Cross multiply
    144,642,779.16x = 199,609,665.17 × 81,931,897.95
  4. Step 4: Simplify right side
    144,642,779.16x = 16,354,398,716,132,450
  5. Step 5: Solve for x
    x = 16,354,398,716,132,450/144,642,779.16
  6. Step 6: Final answer
    x = 113,067,508.87

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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.