Home / 78,307,281.24-108,061,043.94-43,502,160.12

Finding the Fourth Proportional to 78,307,281.24, 108,061,043.94 and 43,502,160.12

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Solution

The fourth proportional to 78,307,281.24, 108,061,043.94 and 43,502,160.12 is: 60,031,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,307,281.24 : 108,061,043.94 = 43,502,160.12 : x
  2. Step 2: Convert to fraction form
    78,307,281.24/108,061,043.94 = 43,502,160.12/x
  3. Step 3: Cross multiply
    78,307,281.24x = 108,061,043.94 × 43,502,160.12
  4. Step 4: Simplify right side
    78,307,281.24x = 4,700,888,836,212,235
  5. Step 5: Solve for x
    x = 4,700,888,836,212,235/78,307,281.24
  6. Step 6: Final answer
    x = 60,031,312.05

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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.