Home / 61,931,421.90-92,894,180.40-20,986,845.30

Finding the Fourth Proportional to 61,931,421.90, 92,894,180.40 and 20,986,845.30

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Solution

The fourth proportional to 61,931,421.90, 92,894,180.40 and 20,986,845.30 is: 31,479,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931,421.90 : 92,894,180.40 = 20,986,845.30 : x
  2. Step 2: Convert to fraction form
    61,931,421.90/92,894,180.40 = 20,986,845.30/x
  3. Step 3: Cross multiply
    61,931,421.90x = 92,894,180.40 × 20,986,845.30
  4. Step 4: Simplify right side
    61,931,421.90x = 1,949,555,793,325,092.25
  5. Step 5: Solve for x
    x = 1,949,555,793,325,092.25/61,931,421.90
  6. Step 6: Final answer
    x = 31,479,267.45

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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.