Home / 87,471,913.70-120,710,424.86-47,779,429.24

Finding the Fourth Proportional to 87,471,913.70, 120,710,424.86 and 47,779,429.24

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Solution

The fourth proportional to 87,471,913.70, 120,710,424.86 and 47,779,429.24 is: 65,935,166.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,471,913.70 : 120,710,424.86 = 47,779,429.24 : x
  2. Step 2: Convert to fraction form
    87,471,913.70/120,710,424.86 = 47,779,429.24/x
  3. Step 3: Cross multiply
    87,471,913.70x = 120,710,424.86 × 47,779,429.24
  4. Step 4: Simplify right side
    87,471,913.70x = 5,767,475,203,128,707
  5. Step 5: Solve for x
    x = 5,767,475,203,128,707/87,471,913.70
  6. Step 6: Final answer
    x = 65,935,166.61

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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.