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Finding the Fourth Proportional to 28,072,634.40, 42,108,951.60 and 28,072,634.40

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Solution

The fourth proportional to 28,072,634.40, 42,108,951.60 and 28,072,634.40 is: 42,108,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,634.40 : 42,108,951.60 = 28,072,634.40 : x
  2. Step 2: Convert to fraction form
    28,072,634.40/42,108,951.60 = 28,072,634.40/x
  3. Step 3: Cross multiply
    28,072,634.40x = 42,108,951.60 × 28,072,634.40
  4. Step 4: Simplify right side
    28,072,634.40x = 1,182,109,203,234,095
  5. Step 5: Solve for x
    x = 1,182,109,203,234,095/28,072,634.40
  6. Step 6: Final answer
    x = 42,108,951.60

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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.