Home / 87,315,762.38-131,064,487.09-64,312,671.20

Finding the Fourth Proportional to 87,315,762.38, 131,064,487.09 and 64,312,671.20

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Solution

The fourth proportional to 87,315,762.38, 131,064,487.09 and 64,312,671.20 is: 96,535,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,315,762.38 : 131,064,487.09 = 64,312,671.20 : x
  2. Step 2: Convert to fraction form
    87,315,762.38/131,064,487.09 = 64,312,671.20/x
  3. Step 3: Cross multiply
    87,315,762.38x = 131,064,487.09 × 64,312,671.20
  4. Step 4: Simplify right side
    87,315,762.38x = 8,429,107,263,399,711
  5. Step 5: Solve for x
    x = 8,429,107,263,399,711/87,315,762.38
  6. Step 6: Final answer
    x = 96,535,917.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.