Home / 910,359,885.52-1,256,296,626.80-492,672,170.85

Finding the Fourth Proportional to 910,359,885.52, 1,256,296,626.80 and 492,672,170.85

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Solution

The fourth proportional to 910,359,885.52, 1,256,296,626.80 and 492,672,170.85 is: 679,887,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,359,885.52 : 1,256,296,626.80 = 492,672,170.85 : x
  2. Step 2: Convert to fraction form
    910,359,885.52/1,256,296,626.80 = 492,672,170.85/x
  3. Step 3: Cross multiply
    910,359,885.52x = 1,256,296,626.80 × 492,672,170.85
  4. Step 4: Simplify right side
    910,359,885.52x = 618,942,386,348,343,552
  5. Step 5: Solve for x
    x = 618,942,386,348,343,552/910,359,885.52
  6. Step 6: Final answer
    x = 679,887,587.53

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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.