Home / 129,024,401.80-193,536,602.70-115,886,072.20

Finding the Fourth Proportional to 129,024,401.80, 193,536,602.70 and 115,886,072.20

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Solution

The fourth proportional to 129,024,401.80, 193,536,602.70 and 115,886,072.20 is: 173,829,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,401.80 : 193,536,602.70 = 115,886,072.20 : x
  2. Step 2: Convert to fraction form
    129,024,401.80/193,536,602.70 = 115,886,072.20/x
  3. Step 3: Cross multiply
    129,024,401.80x = 193,536,602.70 × 115,886,072.20
  4. Step 4: Simplify right side
    129,024,401.80x = 22,428,196,713,834,916
  5. Step 5: Solve for x
    x = 22,428,196,713,834,916/129,024,401.80
  6. Step 6: Final answer
    x = 173,829,108.30

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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.