Home / 72,444,060.78-99,963,719.43-48,973,665.90

Finding the Fourth Proportional to 72,444,060.78, 99,963,719.43 and 48,973,665.90

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Solution

The fourth proportional to 72,444,060.78, 99,963,719.43 and 48,973,665.90 is: 67,577,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444,060.78 : 99,963,719.43 = 48,973,665.90 : x
  2. Step 2: Convert to fraction form
    72,444,060.78/99,963,719.43 = 48,973,665.90/x
  3. Step 3: Cross multiply
    72,444,060.78x = 99,963,719.43 × 48,973,665.90
  4. Step 4: Simplify right side
    72,444,060.78x = 4,895,589,797,486,159
  5. Step 5: Solve for x
    x = 4,895,589,797,486,159/72,444,060.78
  6. Step 6: Final answer
    x = 67,577,517.67

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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.