Home / 66,424,247.12-99,635,777.76-20,986,040

Finding the Fourth Proportional to 66,424,247.12, 99,635,777.76 and 20,986,040

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Solution

The fourth proportional to 66,424,247.12, 99,635,777.76 and 20,986,040 is: 31,478,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424,247.12 : 99,635,777.76 = 20,986,040 : x
  2. Step 2: Convert to fraction form
    66,424,247.12/99,635,777.76 = 20,986,040/x
  3. Step 3: Cross multiply
    66,424,247.12x = 99,635,777.76 × 20,986,040
  4. Step 4: Simplify right side
    66,424,247.12x = 2,090,960,417,502,470.50
  5. Step 5: Solve for x
    x = 2,090,960,417,502,470.50/66,424,247.12
  6. Step 6: Final answer
    x = 31,478,872.67

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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.