Home / 78,770,952.12-108,709,378.38-43,970,423.16

Finding the Fourth Proportional to 78,770,952.12, 108,709,378.38 and 43,970,423.16

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Solution

The fourth proportional to 78,770,952.12, 108,709,378.38 and 43,970,423.16 is: 60,682,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,770,952.12 : 108,709,378.38 = 43,970,423.16 : x
  2. Step 2: Convert to fraction form
    78,770,952.12/108,709,378.38 = 43,970,423.16/x
  3. Step 3: Cross multiply
    78,770,952.12x = 108,709,378.38 × 43,970,423.16
  4. Step 4: Simplify right side
    78,770,952.12x = 4,779,997,368,829,155
  5. Step 5: Solve for x
    x = 4,779,997,368,829,155/78,770,952.12
  6. Step 6: Final answer
    x = 60,682,234.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.