Home / 678,610,388.07-1,016,019,113.14-366,600,195.75

Finding the Fourth Proportional to 678,610,388.07, 1,016,019,113.14 and 366,600,195.75

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Solution

The fourth proportional to 678,610,388.07, 1,016,019,113.14 and 366,600,195.75 is: 548,875,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,610,388.07 : 1,016,019,113.14 = 366,600,195.75 : x
  2. Step 2: Convert to fraction form
    678,610,388.07/1,016,019,113.14 = 366,600,195.75/x
  3. Step 3: Cross multiply
    678,610,388.07x = 1,016,019,113.14 × 366,600,195.75
  4. Step 4: Simplify right side
    678,610,388.07x = 372,472,805,762,865,408
  5. Step 5: Solve for x
    x = 372,472,805,762,865,408/678,610,388.07
  6. Step 6: Final answer
    x = 548,875,779.55

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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.