Home / 871,444,176.74-1,202,635,507.95-490,086,211.65

Finding the Fourth Proportional to 871,444,176.74, 1,202,635,507.95 and 490,086,211.65

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Solution

The fourth proportional to 871,444,176.74, 1,202,635,507.95 and 490,086,211.65 is: 676,342,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,444,176.74 : 1,202,635,507.95 = 490,086,211.65 : x
  2. Step 2: Convert to fraction form
    871,444,176.74/1,202,635,507.95 = 490,086,211.65/x
  3. Step 3: Cross multiply
    871,444,176.74x = 1,202,635,507.95 × 490,086,211.65
  4. Step 4: Simplify right side
    871,444,176.74x = 589,395,080,086,988,928
  5. Step 5: Solve for x
    x = 589,395,080,086,988,928/871,444,176.74
  6. Step 6: Final answer
    x = 676,342,898.17

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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.