Home / 121,215,172.20-181,822,758.30-84,864,607.80

Finding the Fourth Proportional to 121,215,172.20, 181,822,758.30 and 84,864,607.80

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Solution

The fourth proportional to 121,215,172.20, 181,822,758.30 and 84,864,607.80 is: 127,296,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,215,172.20 : 181,822,758.30 = 84,864,607.80 : x
  2. Step 2: Convert to fraction form
    121,215,172.20/181,822,758.30 = 84,864,607.80/x
  3. Step 3: Cross multiply
    121,215,172.20x = 181,822,758.30 × 84,864,607.80
  4. Step 4: Simplify right side
    121,215,172.20x = 15,430,317,072,243,696
  5. Step 5: Solve for x
    x = 15,430,317,072,243,696/121,215,172.20
  6. Step 6: Final answer
    x = 127,296,911.70

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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.