Home / 85,421,851.23-128,179,423.03-36,230,052.88

Finding the Fourth Proportional to 85,421,851.23, 128,179,423.03 and 36,230,052.88

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Solution

The fourth proportional to 85,421,851.23, 128,179,423.03 and 36,230,052.88 is: 54,364,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,421,851.23 : 128,179,423.03 = 36,230,052.88 : x
  2. Step 2: Convert to fraction form
    85,421,851.23/128,179,423.03 = 36,230,052.88/x
  3. Step 3: Cross multiply
    85,421,851.23x = 128,179,423.03 × 36,230,052.88
  4. Step 4: Simplify right side
    85,421,851.23x = 4,643,947,274,642,551
  5. Step 5: Solve for x
    x = 4,643,947,274,642,551/85,421,851.23
  6. Step 6: Final answer
    x = 54,364,863.41

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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.