Home / 99,837,146.85-137,774,971.65-55,784,180.31

Finding the Fourth Proportional to 99,837,146.85, 137,774,971.65 and 55,784,180.31

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Solution

The fourth proportional to 99,837,146.85, 137,774,971.65 and 55,784,180.31 is: 76,982,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,837,146.85 : 137,774,971.65 = 55,784,180.31 : x
  2. Step 2: Convert to fraction form
    99,837,146.85/137,774,971.65 = 55,784,180.31/x
  3. Step 3: Cross multiply
    99,837,146.85x = 137,774,971.65 × 55,784,180.31
  4. Step 4: Simplify right side
    99,837,146.85x = 7,685,663,860,728,739
  5. Step 5: Solve for x
    x = 7,685,663,860,728,739/99,837,146.85
  6. Step 6: Final answer
    x = 76,982,006.23

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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.