Home / 129,046,510.80-193,542,866.10-47,203,940.70

Finding the Fourth Proportional to 129,046,510.80, 193,542,866.10 and 47,203,940.70

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Solution

The fourth proportional to 129,046,510.80, 193,542,866.10 and 47,203,940.70 is: 70,796,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,046,510.80 : 193,542,866.10 = 47,203,940.70 : x
  2. Step 2: Convert to fraction form
    129,046,510.80/193,542,866.10 = 47,203,940.70/x
  3. Step 3: Cross multiply
    129,046,510.80x = 193,542,866.10 × 47,203,940.70
  4. Step 4: Simplify right side
    129,046,510.80x = 9,135,985,974,292,440
  5. Step 5: Solve for x
    x = 9,135,985,974,292,440/129,046,510.80
  6. Step 6: Final answer
    x = 70,796,071.26

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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.