Home / 31,374,970.35-47,065,167.72-8,655,867.60

Finding the Fourth Proportional to 31,374,970.35, 47,065,167.72 and 8,655,867.60

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Solution

The fourth proportional to 31,374,970.35, 47,065,167.72 and 8,655,867.60 is: 12,984,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374,970.35 : 47,065,167.72 = 8,655,867.60 : x
  2. Step 2: Convert to fraction form
    31,374,970.35/47,065,167.72 = 8,655,867.60/x
  3. Step 3: Cross multiply
    31,374,970.35x = 47,065,167.72 × 8,655,867.60
  4. Step 4: Simplify right side
    31,374,970.35x = 407,389,860,356,113.88
  5. Step 5: Solve for x
    x = 407,389,860,356,113.88/31,374,970.35
  6. Step 6: Final answer
    x = 12,984,549.65

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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.