Home / 13,021,470.60-17,970,437.15-7,220,252.32

Finding the Fourth Proportional to 13,021,470.60, 17,970,437.15 and 7,220,252.32

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Solution

The fourth proportional to 13,021,470.60, 17,970,437.15 and 7,220,252.32 is: 9,964,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,470.60 : 17,970,437.15 = 7,220,252.32 : x
  2. Step 2: Convert to fraction form
    13,021,470.60/17,970,437.15 = 7,220,252.32/x
  3. Step 3: Cross multiply
    13,021,470.60x = 17,970,437.15 × 7,220,252.32
  4. Step 4: Simplify right side
    13,021,470.60x = 129,751,090,469,750.28
  5. Step 5: Solve for x
    x = 129,751,090,469,750.28/13,021,470.60
  6. Step 6: Final answer
    x = 9,964,396.07

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1.5x scale

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.