Home / 91,046,579.40-136,569,869.10-81,480,641.40

Finding the Fourth Proportional to 91,046,579.40, 136,569,869.10 and 81,480,641.40

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Solution

The fourth proportional to 91,046,579.40, 136,569,869.10 and 81,480,641.40 is: 122,220,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,046,579.40 : 136,569,869.10 = 81,480,641.40 : x
  2. Step 2: Convert to fraction form
    91,046,579.40/136,569,869.10 = 81,480,641.40/x
  3. Step 3: Cross multiply
    91,046,579.40x = 136,569,869.10 × 81,480,641.40
  4. Step 4: Simplify right side
    91,046,579.40x = 11,127,800,530,182,042
  5. Step 5: Solve for x
    x = 11,127,800,530,182,042/91,046,579.40
  6. Step 6: Final answer
    x = 122,220,962.10

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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.