Home / 72,834,666.48-100,510,649.28-39,794,202.72

Finding the Fourth Proportional to 72,834,666.48, 100,510,649.28 and 39,794,202.72

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Solution

The fourth proportional to 72,834,666.48, 100,510,649.28 and 39,794,202.72 is: 54,915,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,834,666.48 : 100,510,649.28 = 39,794,202.72 : x
  2. Step 2: Convert to fraction form
    72,834,666.48/100,510,649.28 = 39,794,202.72/x
  3. Step 3: Cross multiply
    72,834,666.48x = 100,510,649.28 × 39,794,202.72
  4. Step 4: Simplify right side
    72,834,666.48x = 3,999,741,152,967,142
  5. Step 5: Solve for x
    x = 3,999,741,152,967,142/72,834,666.48
  6. Step 6: Final answer
    x = 54,915,349.33

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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.