Home / 247,680,417.86-371,520,692.40-72,803,459.06

Finding the Fourth Proportional to 247,680,417.86, 371,520,692.40 and 72,803,459.06

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Solution

The fourth proportional to 247,680,417.86, 371,520,692.40 and 72,803,459.06 is: 109,205,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,680,417.86 : 371,520,692.40 = 72,803,459.06 : x
  2. Step 2: Convert to fraction form
    247,680,417.86/371,520,692.40 = 72,803,459.06/x
  3. Step 3: Cross multiply
    247,680,417.86x = 371,520,692.40 × 72,803,459.06
  4. Step 4: Simplify right side
    247,680,417.86x = 27,047,991,519,086,252
  5. Step 5: Solve for x
    x = 27,047,991,519,086,252/247,680,417.86
  6. Step 6: Final answer
    x = 109,205,207.88

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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.