Home / 99,852,806.40-149,779,209.60-83,728,492.80

Finding the Fourth Proportional to 99,852,806.40, 149,779,209.60 and 83,728,492.80

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Solution

The fourth proportional to 99,852,806.40, 149,779,209.60 and 83,728,492.80 is: 125,592,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,852,806.40 : 149,779,209.60 = 83,728,492.80 : x
  2. Step 2: Convert to fraction form
    99,852,806.40/149,779,209.60 = 83,728,492.80/x
  3. Step 3: Cross multiply
    99,852,806.40x = 149,779,209.60 × 83,728,492.80
  4. Step 4: Simplify right side
    99,852,806.40x = 12,540,787,472,583,290
  5. Step 5: Solve for x
    x = 12,540,787,472,583,290/99,852,806.40
  6. Step 6: Final answer
    x = 125,592,739.20

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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.