Home / 155,051,424.72-232,279,080.12-86,686,791.12

Finding the Fourth Proportional to 155,051,424.72, 232,279,080.12 and 86,686,791.12

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Solution

The fourth proportional to 155,051,424.72, 232,279,080.12 and 86,686,791.12 is: 129,863,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,051,424.72 : 232,279,080.12 = 86,686,791.12 : x
  2. Step 2: Convert to fraction form
    155,051,424.72/232,279,080.12 = 86,686,791.12/x
  3. Step 3: Cross multiply
    155,051,424.72x = 232,279,080.12 × 86,686,791.12
  4. Step 4: Simplify right side
    155,051,424.72x = 20,135,528,099,908,188
  5. Step 5: Solve for x
    x = 20,135,528,099,908,188/155,051,424.72
  6. Step 6: Final answer
    x = 129,863,547.76

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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.