Home / 842,649,238.15-1,162,857,861.81-466,333,208.84

Finding the Fourth Proportional to 842,649,238.15, 1,162,857,861.81 and 466,333,208.84

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Solution

The fourth proportional to 842,649,238.15, 1,162,857,861.81 and 466,333,208.84 is: 643,540,886.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,649,238.15 : 1,162,857,861.81 = 466,333,208.84 : x
  2. Step 2: Convert to fraction form
    842,649,238.15/1,162,857,861.81 = 466,333,208.84/x
  3. Step 3: Cross multiply
    842,649,238.15x = 1,162,857,861.81 × 466,333,208.84
  4. Step 4: Simplify right side
    842,649,238.15x = 542,279,238,125,585,664
  5. Step 5: Solve for x
    x = 542,279,238,125,585,664/842,649,238.15
  6. Step 6: Final answer
    x = 643,540,886.97

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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.