Home / 86,931,453.60-130,481,161.20-52,919,229.60

Finding the Fourth Proportional to 86,931,453.60, 130,481,161.20 and 52,919,229.60

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Solution

The fourth proportional to 86,931,453.60, 130,481,161.20 and 52,919,229.60 is: 79,429,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931,453.60 : 130,481,161.20 = 52,919,229.60 : x
  2. Step 2: Convert to fraction form
    86,931,453.60/130,481,161.20 = 52,919,229.60/x
  3. Step 3: Cross multiply
    86,931,453.60x = 130,481,161.20 × 52,919,229.60
  4. Step 4: Simplify right side
    86,931,453.60x = 6,904,962,528,017,412
  5. Step 5: Solve for x
    x = 6,904,962,528,017,412/86,931,453.60
  6. Step 6: Final answer
    x = 79,429,967.43

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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.