Home / 106,514,978.20-159,772,467.30-84,991,617.70

Finding the Fourth Proportional to 106,514,978.20, 159,772,467.30 and 84,991,617.70

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Solution

The fourth proportional to 106,514,978.20, 159,772,467.30 and 84,991,617.70 is: 127,487,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,514,978.20 : 159,772,467.30 = 84,991,617.70 : x
  2. Step 2: Convert to fraction form
    106,514,978.20/159,772,467.30 = 84,991,617.70/x
  3. Step 3: Cross multiply
    106,514,978.20x = 159,772,467.30 × 84,991,617.70
  4. Step 4: Simplify right side
    106,514,978.20x = 13,579,320,459,747,352
  5. Step 5: Solve for x
    x = 13,579,320,459,747,352/106,514,978.20
  6. Step 6: Final answer
    x = 127,487,426.55

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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.