Home / 47,919,221.76-66,160,446.12-28,346,397.96

Finding the Fourth Proportional to 47,919,221.76, 66,160,446.12 and 28,346,397.96

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Solution

The fourth proportional to 47,919,221.76, 66,160,446.12 and 28,346,397.96 is: 39,136,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,919,221.76 : 66,160,446.12 = 28,346,397.96 : x
  2. Step 2: Convert to fraction form
    47,919,221.76/66,160,446.12 = 28,346,397.96/x
  3. Step 3: Cross multiply
    47,919,221.76x = 66,160,446.12 × 28,346,397.96
  4. Step 4: Simplify right side
    47,919,221.76x = 1,875,410,334,928,658
  5. Step 5: Solve for x
    x = 1,875,410,334,928,658/47,919,221.76
  6. Step 6: Final answer
    x = 39,136,911.37

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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.