Home / 126,339,356.48-189,509,013.10-68,879,948

Finding the Fourth Proportional to 126,339,356.48, 189,509,013.10 and 68,879,948

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Solution

The fourth proportional to 126,339,356.48, 189,509,013.10 and 68,879,948 is: 103,319,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,339,356.48 : 189,509,013.10 = 68,879,948 : x
  2. Step 2: Convert to fraction form
    126,339,356.48/189,509,013.10 = 68,879,948/x
  3. Step 3: Cross multiply
    126,339,356.48x = 189,509,013.10 × 68,879,948
  4. Step 4: Simplify right side
    126,339,356.48x = 13,053,370,967,859,318
  5. Step 5: Solve for x
    x = 13,053,370,967,859,318/126,339,356.48
  6. Step 6: Final answer
    x = 103,319,910.21

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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.