Home / 99,708,638.90-137,620,879.94-58,468,817.30

Finding the Fourth Proportional to 99,708,638.90, 137,620,879.94 and 58,468,817.30

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Solution

The fourth proportional to 99,708,638.90, 137,620,879.94 and 58,468,817.30 is: 80,700,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,708,638.90 : 137,620,879.94 = 58,468,817.30 : x
  2. Step 2: Convert to fraction form
    99,708,638.90/137,620,879.94 = 58,468,817.30/x
  3. Step 3: Cross multiply
    99,708,638.90x = 137,620,879.94 × 58,468,817.30
  4. Step 4: Simplify right side
    99,708,638.90x = 8,046,530,085,335,163
  5. Step 5: Solve for x
    x = 8,046,530,085,335,163/99,708,638.90
  6. Step 6: Final answer
    x = 80,700,430.52

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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.