Home / 930,059,712.12-1,394,605,154.18-438,641,035.61

Finding the Fourth Proportional to 930,059,712.12, 1,394,605,154.18 and 438,641,035.61

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Solution

The fourth proportional to 930,059,712.12, 1,394,605,154.18 and 438,641,035.61 is: 657,733,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,059,712.12 : 1,394,605,154.18 = 438,641,035.61 : x
  2. Step 2: Convert to fraction form
    930,059,712.12/1,394,605,154.18 = 438,641,035.61/x
  3. Step 3: Cross multiply
    930,059,712.12x = 1,394,605,154.18 × 438,641,035.61
  4. Step 4: Simplify right side
    930,059,712.12x = 611,731,049,087,392,640
  5. Step 5: Solve for x
    x = 611,731,049,087,392,640/930,059,712.12
  6. Step 6: Final answer
    x = 657,733,090.81

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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.