Home / 78,587,013.10-107,664,598.19-75,641,612.08

Finding the Fourth Proportional to 78,587,013.10, 107,664,598.19 and 75,641,612.08

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Solution

The fourth proportional to 78,587,013.10, 107,664,598.19 and 75,641,612.08 is: 103,629,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,587,013.10 : 107,664,598.19 = 75,641,612.08 : x
  2. Step 2: Convert to fraction form
    78,587,013.10/107,664,598.19 = 75,641,612.08/x
  3. Step 3: Cross multiply
    78,587,013.10x = 107,664,598.19 × 75,641,612.08
  4. Step 4: Simplify right side
    78,587,013.10x = 8,143,923,771,037,050
  5. Step 5: Solve for x
    x = 8,143,923,771,037,050/78,587,013.10
  6. Step 6: Final answer
    x = 103,629,384.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.