Home / 265,984,910.40-398,977,365.60-218,155,220.40

Finding the Fourth Proportional to 265,984,910.40, 398,977,365.60 and 218,155,220.40

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Solution

The fourth proportional to 265,984,910.40, 398,977,365.60 and 218,155,220.40 is: 327,232,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,984,910.40 : 398,977,365.60 = 218,155,220.40 : x
  2. Step 2: Convert to fraction form
    265,984,910.40/398,977,365.60 = 218,155,220.40/x
  3. Step 3: Cross multiply
    265,984,910.40x = 398,977,365.60 × 218,155,220.40
  4. Step 4: Simplify right side
    265,984,910.40x = 87,038,995,127,079,392
  5. Step 5: Solve for x
    x = 87,038,995,127,079,392/265,984,910.40
  6. Step 6: Final answer
    x = 327,232,830.60

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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.