Home / 28,111,479.85-42,168,153.21-9,667,243.90

Finding the Fourth Proportional to 28,111,479.85, 42,168,153.21 and 9,667,243.90

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Solution

The fourth proportional to 28,111,479.85, 42,168,153.21 and 9,667,243.90 is: 14,501,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111,479.85 : 42,168,153.21 = 9,667,243.90 : x
  2. Step 2: Convert to fraction form
    28,111,479.85/42,168,153.21 = 9,667,243.90/x
  3. Step 3: Cross multiply
    28,111,479.85x = 42,168,153.21 × 9,667,243.90
  4. Step 4: Simplify right side
    28,111,479.85x = 407,649,821,893,637.94
  5. Step 5: Solve for x
    x = 407,649,821,893,637.94/28,111,479.85
  6. Step 6: Final answer
    x = 14,501,186.85

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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.