Home / 354,295,205.10-531,442,807.65-124,287,540.30

Finding the Fourth Proportional to 354,295,205.10, 531,442,807.65 and 124,287,540.30

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Solution

The fourth proportional to 354,295,205.10, 531,442,807.65 and 124,287,540.30 is: 186,431,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,205.10 : 531,442,807.65 = 124,287,540.30 : x
  2. Step 2: Convert to fraction form
    354,295,205.10/531,442,807.65 = 124,287,540.30/x
  3. Step 3: Cross multiply
    354,295,205.10x = 531,442,807.65 × 124,287,540.30
  4. Step 4: Simplify right side
    354,295,205.10x = 66,051,719,372,944,520
  5. Step 5: Solve for x
    x = 66,051,719,372,944,520/354,295,205.10
  6. Step 6: Final answer
    x = 186,431,310.45

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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.