Home / 120,314,569.92-166,034,316.96-65,310,463.68

Finding the Fourth Proportional to 120,314,569.92, 166,034,316.96 and 65,310,463.68

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Solution

The fourth proportional to 120,314,569.92, 166,034,316.96 and 65,310,463.68 is: 90,128,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314,569.92 : 166,034,316.96 = 65,310,463.68 : x
  2. Step 2: Convert to fraction form
    120,314,569.92/166,034,316.96 = 65,310,463.68/x
  3. Step 3: Cross multiply
    120,314,569.92x = 166,034,316.96 × 65,310,463.68
  4. Step 4: Simplify right side
    120,314,569.92x = 10,843,778,227,449,688
  5. Step 5: Solve for x
    x = 10,843,778,227,449,688/120,314,569.92
  6. Step 6: Final answer
    x = 90,128,554.13

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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.