Home / 28,083,146.60-42,112,278.30-12,941,719.40

Finding the Fourth Proportional to 28,083,146.60, 42,112,278.30 and 12,941,719.40

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Solution

The fourth proportional to 28,083,146.60, 42,112,278.30 and 12,941,719.40 is: 19,406,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,146.60 : 42,112,278.30 = 12,941,719.40 : x
  2. Step 2: Convert to fraction form
    28,083,146.60/42,112,278.30 = 12,941,719.40/x
  3. Step 3: Cross multiply
    28,083,146.60x = 42,112,278.30 × 12,941,719.40
  4. Step 4: Simplify right side
    28,083,146.60x = 545,005,289,053,309
  5. Step 5: Solve for x
    x = 545,005,289,053,309/28,083,146.60
  6. Step 6: Final answer
    x = 19,406,845.57

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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.