Home / 12,872,890.18-17,764,600.11-7,072,047.70

Finding the Fourth Proportional to 12,872,890.18, 17,764,600.11 and 7,072,047.70

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Solution

The fourth proportional to 12,872,890.18, 17,764,600.11 and 7,072,047.70 is: 9,759,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,890.18 : 17,764,600.11 = 7,072,047.70 : x
  2. Step 2: Convert to fraction form
    12,872,890.18/17,764,600.11 = 7,072,047.70/x
  3. Step 3: Cross multiply
    12,872,890.18x = 17,764,600.11 × 7,072,047.70
  4. Step 4: Simplify right side
    12,872,890.18x = 125,632,099,349,345.25
  5. Step 5: Solve for x
    x = 125,632,099,349,345.25/12,872,890.18
  6. Step 6: Final answer
    x = 9,759,432.23

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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.