Home / 83,001,201.90-124,501,802.85-81,867,461.10

Finding the Fourth Proportional to 83,001,201.90, 124,501,802.85 and 81,867,461.10

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Solution

The fourth proportional to 83,001,201.90, 124,501,802.85 and 81,867,461.10 is: 122,801,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,001,201.90 : 124,501,802.85 = 81,867,461.10 : x
  2. Step 2: Convert to fraction form
    83,001,201.90/124,501,802.85 = 81,867,461.10/x
  3. Step 3: Cross multiply
    83,001,201.90x = 124,501,802.85 × 81,867,461.10
  4. Step 4: Simplify right side
    83,001,201.90x = 10,192,646,501,702,242
  5. Step 5: Solve for x
    x = 10,192,646,501,702,242/83,001,201.90
  6. Step 6: Final answer
    x = 122,801,191.65

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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.