Home / 31,927,506.40-47,897,480.40-12,755,000.80

Finding the Fourth Proportional to 31,927,506.40, 47,897,480.40 and 12,755,000.80

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Solution

The fourth proportional to 31,927,506.40, 47,897,480.40 and 12,755,000.80 is: 19,134,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,927,506.40 : 47,897,480.40 = 12,755,000.80 : x
  2. Step 2: Convert to fraction form
    31,927,506.40/47,897,480.40 = 12,755,000.80/x
  3. Step 3: Cross multiply
    31,927,506.40x = 47,897,480.40 × 12,755,000.80
  4. Step 4: Simplify right side
    31,927,506.40x = 610,932,400,819,984.38
  5. Step 5: Solve for x
    x = 610,932,400,819,984.38/31,927,506.40
  6. Step 6: Final answer
    x = 19,134,986.40

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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.