Home / 103,715,460.90-143,127,042.21-57,305,384.19

Finding the Fourth Proportional to 103,715,460.90, 143,127,042.21 and 57,305,384.19

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Solution

The fourth proportional to 103,715,460.90, 143,127,042.21 and 57,305,384.19 is: 79,081,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,715,460.90 : 143,127,042.21 = 57,305,384.19 : x
  2. Step 2: Convert to fraction form
    103,715,460.90/143,127,042.21 = 57,305,384.19/x
  3. Step 3: Cross multiply
    103,715,460.90x = 143,127,042.21 × 57,305,384.19
  4. Step 4: Simplify right side
    103,715,460.90x = 8,201,950,141,822,397
  5. Step 5: Solve for x
    x = 8,201,950,141,822,397/103,715,460.90
  6. Step 6: Final answer
    x = 79,081,267.83

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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.