Home / 203,630,041.60-305,445,062.40-67,315,425.10

Finding the Fourth Proportional to 203,630,041.60, 305,445,062.40 and 67,315,425.10

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Solution

The fourth proportional to 203,630,041.60, 305,445,062.40 and 67,315,425.10 is: 100,973,137.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,630,041.60 : 305,445,062.40 = 67,315,425.10 : x
  2. Step 2: Convert to fraction form
    203,630,041.60/305,445,062.40 = 67,315,425.10/x
  3. Step 3: Cross multiply
    203,630,041.60x = 305,445,062.40 × 67,315,425.10
  4. Step 4: Simplify right side
    203,630,041.60x = 20,561,164,220,152,024
  5. Step 5: Solve for x
    x = 20,561,164,220,152,024/203,630,041.60
  6. Step 6: Final answer
    x = 100,973,137.65

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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.