Home / 99,675,328.92-137,551,981.32-55,021,328.16

Finding the Fourth Proportional to 99,675,328.92, 137,551,981.32 and 55,021,328.16

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Solution

The fourth proportional to 99,675,328.92, 137,551,981.32 and 55,021,328.16 is: 75,929,447.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,675,328.92 : 137,551,981.32 = 55,021,328.16 : x
  2. Step 2: Convert to fraction form
    99,675,328.92/137,551,981.32 = 55,021,328.16/x
  3. Step 3: Cross multiply
    99,675,328.92x = 137,551,981.32 × 55,021,328.16
  4. Step 4: Simplify right side
    99,675,328.92x = 7,568,292,703,265,909
  5. Step 5: Solve for x
    x = 7,568,292,703,265,909/99,675,328.92
  6. Step 6: Final answer
    x = 75,929,447.99

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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.