Home / 31,374,645.40-47,061,968.10-8,655,506.20

Finding the Fourth Proportional to 31,374,645.40, 47,061,968.10 and 8,655,506.20

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Solution

The fourth proportional to 31,374,645.40, 47,061,968.10 and 8,655,506.20 is: 12,983,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374,645.40 : 47,061,968.10 = 8,655,506.20 : x
  2. Step 2: Convert to fraction form
    31,374,645.40/47,061,968.10 = 8,655,506.20/x
  3. Step 3: Cross multiply
    31,374,645.40x = 47,061,968.10 × 8,655,506.20
  4. Step 4: Simplify right side
    31,374,645.40x = 407,345,156,673,752.19
  5. Step 5: Solve for x
    x = 407,345,156,673,752.19/31,374,645.40
  6. Step 6: Final answer
    x = 12,983,259.30

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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.