Home / 280,546,983.85-387,166,794.30-156,787,657.33

Finding the Fourth Proportional to 280,546,983.85, 387,166,794.30 and 156,787,657.33

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Solution

The fourth proportional to 280,546,983.85, 387,166,794.30 and 156,787,657.33 is: 216,373,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,546,983.85 : 387,166,794.30 = 156,787,657.33 : x
  2. Step 2: Convert to fraction form
    280,546,983.85/387,166,794.30 = 156,787,657.33/x
  3. Step 3: Cross multiply
    280,546,983.85x = 387,166,794.30 × 156,787,657.33
  4. Step 4: Simplify right side
    280,546,983.85x = 60,702,974,674,263,008
  5. Step 5: Solve for x
    x = 60,702,974,674,263,008/280,546,983.85
  6. Step 6: Final answer
    x = 216,373,649.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.