Home / 72,811,045.95-100,478,564.14-39,771,282.44

Finding the Fourth Proportional to 72,811,045.95, 100,478,564.14 and 39,771,282.44

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Solution

The fourth proportional to 72,811,045.95, 100,478,564.14 and 39,771,282.44 is: 54,883,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,811,045.95 : 100,478,564.14 = 39,771,282.44 : x
  2. Step 2: Convert to fraction form
    72,811,045.95/100,478,564.14 = 39,771,282.44/x
  3. Step 3: Cross multiply
    72,811,045.95x = 100,478,564.14 × 39,771,282.44
  4. Step 4: Simplify right side
    72,811,045.95x = 3,996,161,353,577,595.50
  5. Step 5: Solve for x
    x = 3,996,161,353,577,595.50/72,811,045.95
  6. Step 6: Final answer
    x = 54,883,998.73

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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.