Home / 859,386,408.88-1,288,161,833.46-490,126,254.16

Finding the Fourth Proportional to 859,386,408.88, 1,288,161,833.46 and 490,126,254.16

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Solution

The fourth proportional to 859,386,408.88, 1,288,161,833.46 and 490,126,254.16 is: 734,665,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,386,408.88 : 1,288,161,833.46 = 490,126,254.16 : x
  2. Step 2: Convert to fraction form
    859,386,408.88/1,288,161,833.46 = 490,126,254.16/x
  3. Step 3: Cross multiply
    859,386,408.88x = 1,288,161,833.46 × 490,126,254.16
  4. Step 4: Simplify right side
    859,386,408.88x = 631,361,934,185,627,648
  5. Step 5: Solve for x
    x = 631,361,934,185,627,648/859,386,408.88
  6. Step 6: Final answer
    x = 734,665,951.97

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1.5x scale

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.