Home / 72,581,479.20-109,034,420.40-60,637,543.20

Finding the Fourth Proportional to 72,581,479.20, 109,034,420.40 and 60,637,543.20

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Solution

The fourth proportional to 72,581,479.20, 109,034,420.40 and 60,637,543.20 is: 91,091,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,479.20 : 109,034,420.40 = 60,637,543.20 : x
  2. Step 2: Convert to fraction form
    72,581,479.20/109,034,420.40 = 60,637,543.20/x
  3. Step 3: Cross multiply
    72,581,479.20x = 109,034,420.40 × 60,637,543.20
  4. Step 4: Simplify right side
    72,581,479.20x = 6,611,579,377,291,962
  5. Step 5: Solve for x
    x = 6,611,579,377,291,962/72,581,479.20
  6. Step 6: Final answer
    x = 91,091,824.67

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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.