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Finding the Fourth Proportional to 18,638,882.40, 27,941,702.40 and 7,276,688.40

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Solution

The fourth proportional to 18,638,882.40, 27,941,702.40 and 7,276,688.40 is: 10,908,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638,882.40 : 27,941,702.40 = 7,276,688.40 : x
  2. Step 2: Convert to fraction form
    18,638,882.40/27,941,702.40 = 7,276,688.40/x
  3. Step 3: Cross multiply
    18,638,882.40x = 27,941,702.40 × 7,276,688.40
  4. Step 4: Simplify right side
    18,638,882.40x = 203,323,061,730,332.16
  5. Step 5: Solve for x
    x = 203,323,061,730,332.16/18,638,882.40
  6. Step 6: Final answer
    x = 10,908,543.62

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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.