Home / 72,442,108.24-99,970,830.60-39,403,126

Finding the Fourth Proportional to 72,442,108.24, 99,970,830.60 and 39,403,126

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Solution

The fourth proportional to 72,442,108.24, 99,970,830.60 and 39,403,126 is: 54,376,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,442,108.24 : 99,970,830.60 = 39,403,126 : x
  2. Step 2: Convert to fraction form
    72,442,108.24/99,970,830.60 = 39,403,126/x
  3. Step 3: Cross multiply
    72,442,108.24x = 99,970,830.60 × 39,403,126
  4. Step 4: Simplify right side
    72,442,108.24x = 3,939,163,234,456,455.50
  5. Step 5: Solve for x
    x = 3,939,163,234,456,455.50/72,442,108.24
  6. Step 6: Final answer
    x = 54,376,706.17

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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.