Home / 910,359,855.35-1,256,296,584.65-492,672,140.64

Finding the Fourth Proportional to 910,359,855.35, 1,256,296,584.65 and 492,672,140.64

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Solution

The fourth proportional to 910,359,855.35, 1,256,296,584.65 and 492,672,140.64 is: 679,887,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,359,855.35 : 1,256,296,584.65 = 492,672,140.64 : x
  2. Step 2: Convert to fraction form
    910,359,855.35/1,256,296,584.65 = 492,672,140.64/x
  3. Step 3: Cross multiply
    910,359,855.35x = 1,256,296,584.65 × 492,672,140.64
  4. Step 4: Simplify right side
    910,359,855.35x = 618,942,327,645,225,728
  5. Step 5: Solve for x
    x = 618,942,327,645,225,728/910,359,855.35
  6. Step 6: Final answer
    x = 679,887,545.58

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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.