Home / 28,083,138.60-42,112,266.30-12,941,711.40

Finding the Fourth Proportional to 28,083,138.60, 42,112,266.30 and 12,941,711.40

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Solution

The fourth proportional to 28,083,138.60, 42,112,266.30 and 12,941,711.40 is: 19,406,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,138.60 : 42,112,266.30 = 12,941,711.40 : x
  2. Step 2: Convert to fraction form
    28,083,138.60/42,112,266.30 = 12,941,711.40/x
  3. Step 3: Cross multiply
    28,083,138.60x = 42,112,266.30 × 12,941,711.40
  4. Step 4: Simplify right side
    28,083,138.60x = 545,004,796,854,545.81
  5. Step 5: Solve for x
    x = 545,004,796,854,545.81/28,083,138.60
  6. Step 6: Final answer
    x = 19,406,833.57

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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.