Home / 99,853,313.90-149,779,970.85-83,729,000.30

Finding the Fourth Proportional to 99,853,313.90, 149,779,970.85 and 83,729,000.30

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Solution

The fourth proportional to 99,853,313.90, 149,779,970.85 and 83,729,000.30 is: 125,593,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,313.90 : 149,779,970.85 = 83,729,000.30 : x
  2. Step 2: Convert to fraction form
    99,853,313.90/149,779,970.85 = 83,729,000.30/x
  3. Step 3: Cross multiply
    99,853,313.90x = 149,779,970.85 × 83,729,000.30
  4. Step 4: Simplify right side
    99,853,313.90x = 12,540,927,224,233,640
  5. Step 5: Solve for x
    x = 12,540,927,224,233,640/99,853,313.90
  6. Step 6: Final answer
    x = 125,593,500.45

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Similar ratio
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1.5x scale

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.