Home / 191,852,391.20-287,715,601.20-70,668,096.80

Finding the Fourth Proportional to 191,852,391.20, 287,715,601.20 and 70,668,096.80

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Solution

The fourth proportional to 191,852,391.20, 287,715,601.20 and 70,668,096.80 is: 105,978,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,852,391.20 : 287,715,601.20 = 70,668,096.80 : x
  2. Step 2: Convert to fraction form
    191,852,391.20/287,715,601.20 = 70,668,096.80/x
  3. Step 3: Cross multiply
    191,852,391.20x = 287,715,601.20 × 70,668,096.80
  4. Step 4: Simplify right side
    191,852,391.20x = 20,332,313,956,471,796
  5. Step 5: Solve for x
    x = 20,332,313,956,471,796/191,852,391.20
  6. Step 6: Final answer
    x = 105,978,944.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.