Home / 130,493,906.12-180,093,065.10-71,766,920

Finding the Fourth Proportional to 130,493,906.12, 180,093,065.10 and 71,766,920

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Solution

The fourth proportional to 130,493,906.12, 180,093,065.10 and 71,766,920 is: 99,044,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,493,906.12 : 180,093,065.10 = 71,766,920 : x
  2. Step 2: Convert to fraction form
    130,493,906.12/180,093,065.10 = 71,766,920/x
  3. Step 3: Cross multiply
    130,493,906.12x = 180,093,065.10 × 71,766,920
  4. Step 4: Simplify right side
    130,493,906.12x = 12,924,724,595,586,492
  5. Step 5: Solve for x
    x = 12,924,724,595,586,492/130,493,906.12
  6. Step 6: Final answer
    x = 99,044,660.24

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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.