Home / 31,781,881.22-47,672,982.51-9,920,427.90

Finding the Fourth Proportional to 31,781,881.22, 47,672,982.51 and 9,920,427.90

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Solution

The fourth proportional to 31,781,881.22, 47,672,982.51 and 9,920,427.90 is: 14,880,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781,881.22 : 47,672,982.51 = 9,920,427.90 : x
  2. Step 2: Convert to fraction form
    31,781,881.22/47,672,982.51 = 9,920,427.90/x
  3. Step 3: Cross multiply
    31,781,881.22x = 47,672,982.51 × 9,920,427.90
  4. Step 4: Simplify right side
    31,781,881.22x = 472,936,385,768,416
  5. Step 5: Solve for x
    x = 472,936,385,768,416/31,781,881.22
  6. Step 6: Final answer
    x = 14,880,692.01

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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.