Home / 57,080,306.76-78,771,037.50-30,974,829.96

Finding the Fourth Proportional to 57,080,306.76, 78,771,037.50 and 30,974,829.96

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Solution

The fourth proportional to 57,080,306.76, 78,771,037.50 and 30,974,829.96 is: 42,745,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,080,306.76 : 78,771,037.50 = 30,974,829.96 : x
  2. Step 2: Convert to fraction form
    57,080,306.76/78,771,037.50 = 30,974,829.96/x
  3. Step 3: Cross multiply
    57,080,306.76x = 78,771,037.50 × 30,974,829.96
  4. Step 4: Simplify right side
    57,080,306.76x = 2,439,919,492,335,283.50
  5. Step 5: Solve for x
    x = 2,439,919,492,335,283.50/57,080,306.76
  6. Step 6: Final answer
    x = 42,745,381.57

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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.