Home / 28,161,178.02-42,259,536.69-11,987,103.48

Finding the Fourth Proportional to 28,161,178.02, 42,259,536.69 and 11,987,103.48

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Solution

The fourth proportional to 28,161,178.02, 42,259,536.69 and 11,987,103.48 is: 17,988,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,178.02 : 42,259,536.69 = 11,987,103.48 : x
  2. Step 2: Convert to fraction form
    28,161,178.02/42,259,536.69 = 11,987,103.48/x
  3. Step 3: Cross multiply
    28,161,178.02x = 42,259,536.69 × 11,987,103.48
  4. Step 4: Simplify right side
    28,161,178.02x = 506,569,439,319,886.69
  5. Step 5: Solve for x
    x = 506,569,439,319,886.69/28,161,178.02
  6. Step 6: Final answer
    x = 17,988,219.06

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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.