Home / 91,135,989.36-125,785,592.82-69,071,002.11

Finding the Fourth Proportional to 91,135,989.36, 125,785,592.82 and 69,071,002.11

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Solution

The fourth proportional to 91,135,989.36, 125,785,592.82 and 69,071,002.11 is: 95,331,569.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,135,989.36 : 125,785,592.82 = 69,071,002.11 : x
  2. Step 2: Convert to fraction form
    91,135,989.36/125,785,592.82 = 69,071,002.11/x
  3. Step 3: Cross multiply
    91,135,989.36x = 125,785,592.82 × 69,071,002.11
  4. Step 4: Simplify right side
    91,135,989.36x = 8,688,136,947,077,820
  5. Step 5: Solve for x
    x = 8,688,136,947,077,820/91,135,989.36
  6. Step 6: Final answer
    x = 95,331,569.98

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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.