Home / 664,437,386.60-996,656,079.90-319,307,791.40

Finding the Fourth Proportional to 664,437,386.60, 996,656,079.90 and 319,307,791.40

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Solution

The fourth proportional to 664,437,386.60, 996,656,079.90 and 319,307,791.40 is: 478,961,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,437,386.60 : 996,656,079.90 = 319,307,791.40 : x
  2. Step 2: Convert to fraction form
    664,437,386.60/996,656,079.90 = 319,307,791.40/x
  3. Step 3: Cross multiply
    664,437,386.60x = 996,656,079.90 × 319,307,791.40
  4. Step 4: Simplify right side
    664,437,386.60x = 318,240,051,658,250,880
  5. Step 5: Solve for x
    x = 318,240,051,658,250,880/664,437,386.60
  6. Step 6: Final answer
    x = 478,961,687.10

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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.