Home / 91,046,630.40-136,569,945.60-81,480,692.40

Finding the Fourth Proportional to 91,046,630.40, 136,569,945.60 and 81,480,692.40

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Solution

The fourth proportional to 91,046,630.40, 136,569,945.60 and 81,480,692.40 is: 122,221,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,046,630.40 : 136,569,945.60 = 81,480,692.40 : x
  2. Step 2: Convert to fraction form
    91,046,630.40/136,569,945.60 = 81,480,692.40/x
  3. Step 3: Cross multiply
    91,046,630.40x = 136,569,945.60 × 81,480,692.40
  4. Step 4: Simplify right side
    91,046,630.40x = 11,127,813,728,518,334
  5. Step 5: Solve for x
    x = 11,127,813,728,518,334/91,046,630.40
  6. Step 6: Final answer
    x = 122,221,038.60

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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.