Home / 315,035,254.20-472,552,881.30-85,003,969.80

Finding the Fourth Proportional to 315,035,254.20, 472,552,881.30 and 85,003,969.80

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Solution

The fourth proportional to 315,035,254.20, 472,552,881.30 and 85,003,969.80 is: 127,505,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,035,254.20 : 472,552,881.30 = 85,003,969.80 : x
  2. Step 2: Convert to fraction form
    315,035,254.20/472,552,881.30 = 85,003,969.80/x
  3. Step 3: Cross multiply
    315,035,254.20x = 472,552,881.30 × 85,003,969.80
  4. Step 4: Simplify right side
    315,035,254.20x = 40,168,870,850,928,184
  5. Step 5: Solve for x
    x = 40,168,870,850,928,184/315,035,254.20
  6. Step 6: Final answer
    x = 127,505,954.70

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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.