Home / 86,918,576.20-130,377,864.30-43,771,107.40

Finding the Fourth Proportional to 86,918,576.20, 130,377,864.30 and 43,771,107.40

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Solution

The fourth proportional to 86,918,576.20, 130,377,864.30 and 43,771,107.40 is: 65,656,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,918,576.20 : 130,377,864.30 = 43,771,107.40 : x
  2. Step 2: Convert to fraction form
    86,918,576.20/130,377,864.30 = 43,771,107.40/x
  3. Step 3: Cross multiply
    86,918,576.20x = 130,377,864.30 × 43,771,107.40
  4. Step 4: Simplify right side
    86,918,576.20x = 5,706,783,500,857,925
  5. Step 5: Solve for x
    x = 5,706,783,500,857,925/86,918,576.20
  6. Step 6: Final answer
    x = 65,656,661.10

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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.