Home / 81,003,445.43-111,785,430.58-47,532,938.60

Finding the Fourth Proportional to 81,003,445.43, 111,785,430.58 and 47,532,938.60

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Solution

The fourth proportional to 81,003,445.43, 111,785,430.58 and 47,532,938.60 is: 65,595,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,003,445.43 : 111,785,430.58 = 47,532,938.60 : x
  2. Step 2: Convert to fraction form
    81,003,445.43/111,785,430.58 = 47,532,938.60/x
  3. Step 3: Cross multiply
    81,003,445.43x = 111,785,430.58 × 47,532,938.60
  4. Step 4: Simplify right side
    81,003,445.43x = 5,313,490,008,294,334
  5. Step 5: Solve for x
    x = 5,313,490,008,294,334/81,003,445.43
  6. Step 6: Final answer
    x = 65,595,851.89

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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.