Home / 557,730,313.20-834,979,925.92-420,135,403.48

Finding the Fourth Proportional to 557,730,313.20, 834,979,925.92 and 420,135,403.48

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Solution

The fourth proportional to 557,730,313.20, 834,979,925.92 and 420,135,403.48 is: 628,986,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,730,313.20 : 834,979,925.92 = 420,135,403.48 : x
  2. Step 2: Convert to fraction form
    557,730,313.20/834,979,925.92 = 420,135,403.48/x
  3. Step 3: Cross multiply
    557,730,313.20x = 834,979,925.92 × 420,135,403.48
  4. Step 4: Simplify right side
    557,730,313.20x = 350,804,628,074,099,712
  5. Step 5: Solve for x
    x = 350,804,628,074,099,712/557,730,313.20
  6. Step 6: Final answer
    x = 628,986,124.25

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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.