Home / 115,916,005.90-173,874,008.85-81,903,781.90

Finding the Fourth Proportional to 115,916,005.90, 173,874,008.85 and 81,903,781.90

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Solution

The fourth proportional to 115,916,005.90, 173,874,008.85 and 81,903,781.90 is: 122,855,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916,005.90 : 173,874,008.85 = 81,903,781.90 : x
  2. Step 2: Convert to fraction form
    115,916,005.90/173,874,008.85 = 81,903,781.90/x
  3. Step 3: Cross multiply
    115,916,005.90x = 173,874,008.85 × 81,903,781.90
  4. Step 4: Simplify right side
    115,916,005.90x = 14,240,938,898,929,070
  5. Step 5: Solve for x
    x = 14,240,938,898,929,070/115,916,005.90
  6. Step 6: Final answer
    x = 122,855,672.85

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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.