Home / 863,689,557.16-1,294,493,462.11-396,706,576.78

Finding the Fourth Proportional to 863,689,557.16, 1,294,493,462.11 and 396,706,576.78

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Solution

The fourth proportional to 863,689,557.16, 1,294,493,462.11 and 396,706,576.78 is: 594,581,775.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,689,557.16 : 1,294,493,462.11 = 396,706,576.78 : x
  2. Step 2: Convert to fraction form
    863,689,557.16/1,294,493,462.11 = 396,706,576.78/x
  3. Step 3: Cross multiply
    863,689,557.16x = 1,294,493,462.11 × 396,706,576.78
  4. Step 4: Simplify right side
    863,689,557.16x = 513,534,070,017,748,672
  5. Step 5: Solve for x
    x = 513,534,070,017,748,672/863,689,557.16
  6. Step 6: Final answer
    x = 594,581,775.08

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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.