Home / 78,176,488.34-107,883,680.82-43,369,179.68

Finding the Fourth Proportional to 78,176,488.34, 107,883,680.82 and 43,369,179.68

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Solution

The fourth proportional to 78,176,488.34, 107,883,680.82 and 43,369,179.68 is: 59,849,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,176,488.34 : 107,883,680.82 = 43,369,179.68 : x
  2. Step 2: Convert to fraction form
    78,176,488.34/107,883,680.82 = 43,369,179.68/x
  3. Step 3: Cross multiply
    78,176,488.34x = 107,883,680.82 × 43,369,179.68
  4. Step 4: Simplify right side
    78,176,488.34x = 4,678,826,738,022,349
  5. Step 5: Solve for x
    x = 4,678,826,738,022,349/78,176,488.34
  6. Step 6: Final answer
    x = 59,849,538.36

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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.