Home / 28,656,086.40-42,984,129.60-18,452,419.20

Finding the Fourth Proportional to 28,656,086.40, 42,984,129.60 and 18,452,419.20

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Solution

The fourth proportional to 28,656,086.40, 42,984,129.60 and 18,452,419.20 is: 27,678,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,086.40 : 42,984,129.60 = 18,452,419.20 : x
  2. Step 2: Convert to fraction form
    28,656,086.40/42,984,129.60 = 18,452,419.20/x
  3. Step 3: Cross multiply
    28,656,086.40x = 42,984,129.60 × 18,452,419.20
  4. Step 4: Simplify right side
    28,656,086.40x = 793,161,178,326,328.38
  5. Step 5: Solve for x
    x = 793,161,178,326,328.38/28,656,086.40
  6. Step 6: Final answer
    x = 27,678,628.80

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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.