Home / 103,836,377.79-143,288,403.84-56,784,166.29

Finding the Fourth Proportional to 103,836,377.79, 143,288,403.84 and 56,784,166.29

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Solution

The fourth proportional to 103,836,377.79, 143,288,403.84 and 56,784,166.29 is: 78,358,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,836,377.79 : 143,288,403.84 = 56,784,166.29 : x
  2. Step 2: Convert to fraction form
    103,836,377.79/143,288,403.84 = 56,784,166.29/x
  3. Step 3: Cross multiply
    103,836,377.79x = 143,288,403.84 × 56,784,166.29
  4. Step 4: Simplify right side
    103,836,377.79x = 8,136,512,551,079,235
  5. Step 5: Solve for x
    x = 8,136,512,551,079,235/103,836,377.79
  6. Step 6: Final answer
    x = 78,358,979.04

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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.