Home / 90,217,541.16-135,383,238.89-38,402,061.09

Finding the Fourth Proportional to 90,217,541.16, 135,383,238.89 and 38,402,061.09

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Solution

The fourth proportional to 90,217,541.16, 135,383,238.89 and 38,402,061.09 is: 57,627,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217,541.16 : 135,383,238.89 = 38,402,061.09 : x
  2. Step 2: Convert to fraction form
    90,217,541.16/135,383,238.89 = 38,402,061.09/x
  3. Step 3: Cross multiply
    90,217,541.16x = 135,383,238.89 × 38,402,061.09
  4. Step 4: Simplify right side
    90,217,541.16x = 5,198,995,409,860,154
  5. Step 5: Solve for x
    x = 5,198,995,409,860,154/90,217,541.16
  6. Step 6: Final answer
    x = 57,627,323.28

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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.