Home / 30,617,389.60-45,926,084.40-28,279,049.20

Finding the Fourth Proportional to 30,617,389.60, 45,926,084.40 and 28,279,049.20

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Solution

The fourth proportional to 30,617,389.60, 45,926,084.40 and 28,279,049.20 is: 42,418,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617,389.60 : 45,926,084.40 = 28,279,049.20 : x
  2. Step 2: Convert to fraction form
    30,617,389.60/45,926,084.40 = 28,279,049.20/x
  3. Step 3: Cross multiply
    30,617,389.60x = 45,926,084.40 × 28,279,049.20
  4. Step 4: Simplify right side
    30,617,389.60x = 1,298,746,000,310,952.50
  5. Step 5: Solve for x
    x = 1,298,746,000,310,952.50/30,617,389.60
  6. Step 6: Final answer
    x = 42,418,573.80

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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.