Home / 1,215,429,067.76-1,676,778,502.44-813,672,248.92

Finding the Fourth Proportional to 1,215,429,067.76, 1,676,778,502.44 and 813,672,248.92

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Solution

The fourth proportional to 1,215,429,067.76, 1,676,778,502.44 and 813,672,248.92 is: 1,122,523,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,429,067.76 : 1,676,778,502.44 = 813,672,248.92 : x
  2. Step 2: Convert to fraction form
    1,215,429,067.76/1,676,778,502.44 = 813,672,248.92/x
  3. Step 3: Cross multiply
    1,215,429,067.76x = 1,676,778,502.44 × 813,672,248.92
  4. Step 4: Simplify right side
    1,215,429,067.76x = 1,364,348,135,021,064,448
  5. Step 5: Solve for x
    x = 1,364,348,135,021,064,448/1,215,429,067.76
  6. Step 6: Final answer
    x = 1,122,523,865.20

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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.