Home / 209,981,005.60-314,971,508.40-193,352,807.20

Finding the Fourth Proportional to 209,981,005.60, 314,971,508.40 and 193,352,807.20

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Solution

The fourth proportional to 209,981,005.60, 314,971,508.40 and 193,352,807.20 is: 290,029,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,981,005.60 : 314,971,508.40 = 193,352,807.20 : x
  2. Step 2: Convert to fraction form
    209,981,005.60/314,971,508.40 = 193,352,807.20/x
  3. Step 3: Cross multiply
    209,981,005.60x = 314,971,508.40 × 193,352,807.20
  4. Step 4: Simplify right side
    209,981,005.60x = 60,900,625,337,158,376
  5. Step 5: Solve for x
    x = 60,900,625,337,158,376/209,981,005.60
  6. Step 6: Final answer
    x = 290,029,210.80

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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.