Home / 31,539,813.80-47,309,720.70-28,354,764.20

Finding the Fourth Proportional to 31,539,813.80, 47,309,720.70 and 28,354,764.20

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Solution

The fourth proportional to 31,539,813.80, 47,309,720.70 and 28,354,764.20 is: 42,532,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539,813.80 : 47,309,720.70 = 28,354,764.20 : x
  2. Step 2: Convert to fraction form
    31,539,813.80/47,309,720.70 = 28,354,764.20/x
  3. Step 3: Cross multiply
    31,539,813.80x = 47,309,720.70 × 28,354,764.20
  4. Step 4: Simplify right side
    31,539,813.80x = 1,341,455,974,816,359
  5. Step 5: Solve for x
    x = 1,341,455,974,816,359/31,539,813.80
  6. Step 6: Final answer
    x = 42,532,146.30

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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.