Home / 71,754,054.47-99,023,814.87-40,402,884.59

Finding the Fourth Proportional to 71,754,054.47, 99,023,814.87 and 40,402,884.59

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Solution

The fourth proportional to 71,754,054.47, 99,023,814.87 and 40,402,884.59 is: 55,757,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,754,054.47 : 99,023,814.87 = 40,402,884.59 : x
  2. Step 2: Convert to fraction form
    71,754,054.47/99,023,814.87 = 40,402,884.59/x
  3. Step 3: Cross multiply
    71,754,054.47x = 99,023,814.87 × 40,402,884.59
  4. Step 4: Simplify right side
    71,754,054.47x = 4,000,847,763,854,136.50
  5. Step 5: Solve for x
    x = 4,000,847,763,854,136.50/71,754,054.47
  6. Step 6: Final answer
    x = 55,757,793.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.