Home / 1,215,429,058.74-1,676,778,490.02-813,672,239.91

Finding the Fourth Proportional to 1,215,429,058.74, 1,676,778,490.02 and 813,672,239.91

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Solution

The fourth proportional to 1,215,429,058.74, 1,676,778,490.02 and 813,672,239.91 is: 1,122,523,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,429,058.74 : 1,676,778,490.02 = 813,672,239.91 : x
  2. Step 2: Convert to fraction form
    1,215,429,058.74/1,676,778,490.02 = 813,672,239.91/x
  3. Step 3: Cross multiply
    1,215,429,058.74x = 1,676,778,490.02 × 813,672,239.91
  4. Step 4: Simplify right side
    1,215,429,058.74x = 1,364,348,109,807,480,832
  5. Step 5: Solve for x
    x = 1,364,348,109,807,480,832/1,215,429,058.74
  6. Step 6: Final answer
    x = 1,122,523,852.79

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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.