Home / 86,544,002.70-129,816,004.05-85,946,805.90

Finding the Fourth Proportional to 86,544,002.70, 129,816,004.05 and 85,946,805.90

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Solution

The fourth proportional to 86,544,002.70, 129,816,004.05 and 85,946,805.90 is: 128,920,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,544,002.70 : 129,816,004.05 = 85,946,805.90 : x
  2. Step 2: Convert to fraction form
    86,544,002.70/129,816,004.05 = 85,946,805.90/x
  3. Step 3: Cross multiply
    86,544,002.70x = 129,816,004.05 × 85,946,805.90
  4. Step 4: Simplify right side
    86,544,002.70x = 11,157,270,902,798,964
  5. Step 5: Solve for x
    x = 11,157,270,902,798,964/86,544,002.70
  6. Step 6: Final answer
    x = 128,920,208.85

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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.