Home / 1,238,311,479.86-1,708,818,266.84-673,798,578.38

Finding the Fourth Proportional to 1,238,311,479.86, 1,708,818,266.84 and 673,798,578.38

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Solution

The fourth proportional to 1,238,311,479.86, 1,708,818,266.84 and 673,798,578.38 is: 929,813,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,311,479.86 : 1,708,818,266.84 = 673,798,578.38 : x
  2. Step 2: Convert to fraction form
    1,238,311,479.86/1,708,818,266.84 = 673,798,578.38/x
  3. Step 3: Cross multiply
    1,238,311,479.86x = 1,708,818,266.84 × 673,798,578.38
  4. Step 4: Simplify right side
    1,238,311,479.86x = 1,151,399,318,894,654,464
  5. Step 5: Solve for x
    x = 1,151,399,318,894,654,464/1,238,311,479.86
  6. Step 6: Final answer
    x = 929,813,974.61

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1.5x scale

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.