Home / 111,716,009.20-167,574,013.80-86,206,841.20

Finding the Fourth Proportional to 111,716,009.20, 167,574,013.80 and 86,206,841.20

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Solution

The fourth proportional to 111,716,009.20, 167,574,013.80 and 86,206,841.20 is: 129,310,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,716,009.20 : 167,574,013.80 = 86,206,841.20 : x
  2. Step 2: Convert to fraction form
    111,716,009.20/167,574,013.80 = 86,206,841.20/x
  3. Step 3: Cross multiply
    111,716,009.20x = 167,574,013.80 × 86,206,841.20
  4. Step 4: Simplify right side
    111,716,009.20x = 14,446,026,396,903,210
  5. Step 5: Solve for x
    x = 14,446,026,396,903,210/111,716,009.20
  6. Step 6: Final answer
    x = 129,310,261.80

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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.