Home / 199,314,456.10-298,971,684.15-78,145,908.10

Finding the Fourth Proportional to 199,314,456.10, 298,971,684.15 and 78,145,908.10

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Solution

The fourth proportional to 199,314,456.10, 298,971,684.15 and 78,145,908.10 is: 117,218,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,314,456.10 : 298,971,684.15 = 78,145,908.10 : x
  2. Step 2: Convert to fraction form
    199,314,456.10/298,971,684.15 = 78,145,908.10/x
  3. Step 3: Cross multiply
    199,314,456.10x = 298,971,684.15 × 78,145,908.10
  4. Step 4: Simplify right side
    199,314,456.10x = 23,363,413,754,088,124
  5. Step 5: Solve for x
    x = 23,363,413,754,088,124/199,314,456.10
  6. Step 6: Final answer
    x = 117,218,862.15

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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.