Home / 392,258,328.40-587,325,809.40-307,323,672.40

Finding the Fourth Proportional to 392,258,328.40, 587,325,809.40 and 307,323,672.40

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Solution

The fourth proportional to 392,258,328.40, 587,325,809.40 and 307,323,672.40 is: 460,153,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,258,328.40 : 587,325,809.40 = 307,323,672.40 : x
  2. Step 2: Convert to fraction form
    392,258,328.40/587,325,809.40 = 307,323,672.40/x
  3. Step 3: Cross multiply
    392,258,328.40x = 587,325,809.40 × 307,323,672.40
  4. Step 4: Simplify right side
    392,258,328.40x = 180,499,124,640,110,432
  5. Step 5: Solve for x
    x = 180,499,124,640,110,432/392,258,328.40
  6. Step 6: Final answer
    x = 460,153,708.85

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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.