Home / 28,341,005.20-42,516,756.60-9,172,387.60

Finding the Fourth Proportional to 28,341,005.20, 42,516,756.60 and 9,172,387.60

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Solution

The fourth proportional to 28,341,005.20, 42,516,756.60 and 9,172,387.60 is: 13,760,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,005.20 : 42,516,756.60 = 9,172,387.60 : x
  2. Step 2: Convert to fraction form
    28,341,005.20/42,516,756.60 = 9,172,387.60/x
  3. Step 3: Cross multiply
    28,341,005.20x = 42,516,756.60 × 9,172,387.60
  4. Step 4: Simplify right side
    28,341,005.20x = 389,980,171,030,058.19
  5. Step 5: Solve for x
    x = 389,980,171,030,058.19/28,341,005.20
  6. Step 6: Final answer
    x = 13,760,280.14

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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.