Home / 81,919,063.83-122,877,754.68-47,353,471.72

Finding the Fourth Proportional to 81,919,063.83, 122,877,754.68 and 47,353,471.72

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Solution

The fourth proportional to 81,919,063.83, 122,877,754.68 and 47,353,471.72 is: 71,029,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919,063.83 : 122,877,754.68 = 47,353,471.72 : x
  2. Step 2: Convert to fraction form
    81,919,063.83/122,877,754.68 = 47,353,471.72/x
  3. Step 3: Cross multiply
    81,919,063.83x = 122,877,754.68 × 47,353,471.72
  4. Step 4: Simplify right side
    81,919,063.83x = 5,818,688,281,256,478
  5. Step 5: Solve for x
    x = 5,818,688,281,256,478/81,919,063.83
  6. Step 6: Final answer
    x = 71,029,721.40

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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.