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Finding the Fourth Proportional to 75,433,319.10, 113,149,978.65 and 70,969,214.70

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Solution

The fourth proportional to 75,433,319.10, 113,149,978.65 and 70,969,214.70 is: 106,453,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,433,319.10 : 113,149,978.65 = 70,969,214.70 : x
  2. Step 2: Convert to fraction form
    75,433,319.10/113,149,978.65 = 70,969,214.70/x
  3. Step 3: Cross multiply
    75,433,319.10x = 113,149,978.65 × 70,969,214.70
  4. Step 4: Simplify right side
    75,433,319.10x = 8,030,165,128,112,267
  5. Step 5: Solve for x
    x = 8,030,165,128,112,267/75,433,319.10
  6. Step 6: Final answer
    x = 106,453,822.05

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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.