Home / 203,626,807.40-305,440,211.10-74,238,638.60

Finding the Fourth Proportional to 203,626,807.40, 305,440,211.10 and 74,238,638.60

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Solution

The fourth proportional to 203,626,807.40, 305,440,211.10 and 74,238,638.60 is: 111,357,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,626,807.40 : 305,440,211.10 = 74,238,638.60 : x
  2. Step 2: Convert to fraction form
    203,626,807.40/305,440,211.10 = 74,238,638.60/x
  3. Step 3: Cross multiply
    203,626,807.40x = 305,440,211.10 × 74,238,638.60
  4. Step 4: Simplify right side
    203,626,807.40x = 22,675,465,445,760,608
  5. Step 5: Solve for x
    x = 22,675,465,445,760,608/203,626,807.40
  6. Step 6: Final answer
    x = 111,357,957.90

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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.