Home / 1,005,667,253.89-1,387,941,628.30-609,178,609.96

Finding the Fourth Proportional to 1,005,667,253.89, 1,387,941,628.30 and 609,178,609.96

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Solution

The fourth proportional to 1,005,667,253.89, 1,387,941,628.30 and 609,178,609.96 is: 840,739,666.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,667,253.89 : 1,387,941,628.30 = 609,178,609.96 : x
  2. Step 2: Convert to fraction form
    1,005,667,253.89/1,387,941,628.30 = 609,178,609.96/x
  3. Step 3: Cross multiply
    1,005,667,253.89x = 1,387,941,628.30 × 609,178,609.96
  4. Step 4: Simplify right side
    1,005,667,253.89x = 845,504,351,828,420,096
  5. Step 5: Solve for x
    x = 845,504,351,828,420,096/1,005,667,253.89
  6. Step 6: Final answer
    x = 840,739,666.68

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Double scale
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1.5x scale

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.