Home / 1,298,083,793.56-1,947,108,682.68-315,507,478.48

Finding the Fourth Proportional to 1,298,083,793.56, 1,947,108,682.68 and 315,507,478.48

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Solution

The fourth proportional to 1,298,083,793.56, 1,947,108,682.68 and 315,507,478.48 is: 473,257,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,083,793.56 : 1,947,108,682.68 = 315,507,478.48 : x
  2. Step 2: Convert to fraction form
    1,298,083,793.56/1,947,108,682.68 = 315,507,478.48/x
  3. Step 3: Cross multiply
    1,298,083,793.56x = 1,947,108,682.68 × 315,507,478.48
  4. Step 4: Simplify right side
    1,298,083,793.56x = 614,327,350,798,881,280
  5. Step 5: Solve for x
    x = 614,327,350,798,881,280/1,298,083,793.56
  6. Step 6: Final answer
    x = 473,257,083.90

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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.