Home / 278,286,748,006.08-417,398,861,957.76-76,857,119,045.76

Finding the Fourth Proportional to 278,286,748,006.08, 417,398,861,957.76 and 76,857,119,045.76

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Solution

The fourth proportional to 278,286,748,006.08, 417,398,861,957.76 and 76,857,119,045.76 is: 115,277,045,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,286,748,006.08 : 417,398,861,957.76 = 76,857,119,045.76 : x
  2. Step 2: Convert to fraction form
    278,286,748,006.08/417,398,861,957.76 = 76,857,119,045.76/x
  3. Step 3: Cross multiply
    278,286,748,006.08x = 417,398,861,957.76 × 76,857,119,045.76
  4. Step 4: Simplify right side
    278,286,748,006.08x = 32,080,074,023,052,303,663,104
  5. Step 5: Solve for x
    x = 32,080,074,023,052,303,663,104/278,286,748,006.08
  6. Step 6: Final answer
    x = 115,277,045,180.58

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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.