Home / 1,215,429,037.59-1,676,778,468.06-813,672,226.35

Finding the Fourth Proportional to 1,215,429,037.59, 1,676,778,468.06 and 813,672,226.35

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Solution

The fourth proportional to 1,215,429,037.59, 1,676,778,468.06 and 813,672,226.35 is: 1,122,523,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,429,037.59 : 1,676,778,468.06 = 813,672,226.35 : x
  2. Step 2: Convert to fraction form
    1,215,429,037.59/1,676,778,468.06 = 813,672,226.35/x
  3. Step 3: Cross multiply
    1,215,429,037.59x = 1,676,778,468.06 × 813,672,226.35
  4. Step 4: Simplify right side
    1,215,429,037.59x = 1,364,348,069,202,122,496
  5. Step 5: Solve for x
    x = 1,364,348,069,202,122,496/1,215,429,037.59
  6. Step 6: Final answer
    x = 1,122,523,838.91

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Double scale
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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.