Home / 289,991,306.50-400,187,980.68-157,833,250.62

Finding the Fourth Proportional to 289,991,306.50, 400,187,980.68 and 157,833,250.62

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Solution

The fourth proportional to 289,991,306.50, 400,187,980.68 and 157,833,250.62 is: 217,809,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,306.50 : 400,187,980.68 = 157,833,250.62 : x
  2. Step 2: Convert to fraction form
    289,991,306.50/400,187,980.68 = 157,833,250.62/x
  3. Step 3: Cross multiply
    289,991,306.50x = 400,187,980.68 × 157,833,250.62
  4. Step 4: Simplify right side
    289,991,306.50x = 63,162,969,849,778,160
  5. Step 5: Solve for x
    x = 63,162,969,849,778,160/289,991,306.50
  6. Step 6: Final answer
    x = 217,809,873.72

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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.