Home / 28,678,632.40-43,017,948.60-28,479,566.80

Finding the Fourth Proportional to 28,678,632.40, 43,017,948.60 and 28,479,566.80

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Solution

The fourth proportional to 28,678,632.40, 43,017,948.60 and 28,479,566.80 is: 42,719,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,632.40 : 43,017,948.60 = 28,479,566.80 : x
  2. Step 2: Convert to fraction form
    28,678,632.40/43,017,948.60 = 28,479,566.80/x
  3. Step 3: Cross multiply
    28,678,632.40x = 43,017,948.60 × 28,479,566.80
  4. Step 4: Simplify right side
    28,678,632.40x = 1,225,132,540,752,666.50
  5. Step 5: Solve for x
    x = 1,225,132,540,752,666.50/28,678,632.40
  6. Step 6: Final answer
    x = 42,719,350.20

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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.