Home / 72,621,810.70-108,806,744.85-47,049,657.10

Finding the Fourth Proportional to 72,621,810.70, 108,806,744.85 and 47,049,657.10

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Solution

The fourth proportional to 72,621,810.70, 108,806,744.85 and 47,049,657.10 is: 70,492,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621,810.70 : 108,806,744.85 = 47,049,657.10 : x
  2. Step 2: Convert to fraction form
    72,621,810.70/108,806,744.85 = 47,049,657.10/x
  3. Step 3: Cross multiply
    72,621,810.70x = 108,806,744.85 × 47,049,657.10
  4. Step 4: Simplify right side
    72,621,810.70x = 5,119,320,035,359,691
  5. Step 5: Solve for x
    x = 5,119,320,035,359,691/72,621,810.70
  6. Step 6: Final answer
    x = 70,492,872.40

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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.