Home / 2,153,831.40-2,972,280.42-1,186,961.40

Finding the Fourth Proportional to 2,153,831.40, 2,972,280.42 and 1,186,961.40

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Solution

The fourth proportional to 2,153,831.40, 2,972,280.42 and 1,186,961.40 is: 1,638,002.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,831.40 : 2,972,280.42 = 1,186,961.40 : x
  2. Step 2: Convert to fraction form
    2,153,831.40/2,972,280.42 = 1,186,961.40/x
  3. Step 3: Cross multiply
    2,153,831.40x = 2,972,280.42 × 1,186,961.40
  4. Step 4: Simplify right side
    2,153,831.40x = 3,527,982,128,515.79
  5. Step 5: Solve for x
    x = 3,527,982,128,515.79/2,153,831.40
  6. Step 6: Final answer
    x = 1,638,002.92

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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.