Home / 13,148,272.09-18,144,267.39-7,347,101.50

Finding the Fourth Proportional to 13,148,272.09, 18,144,267.39 and 7,347,101.50

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Solution

The fourth proportional to 13,148,272.09, 18,144,267.39 and 7,347,101.50 is: 10,138,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,272.09 : 18,144,267.39 = 7,347,101.50 : x
  2. Step 2: Convert to fraction form
    13,148,272.09/18,144,267.39 = 7,347,101.50/x
  3. Step 3: Cross multiply
    13,148,272.09x = 18,144,267.39 × 7,347,101.50
  4. Step 4: Simplify right side
    13,148,272.09x = 133,307,774,157,470.09
  5. Step 5: Solve for x
    x = 133,307,774,157,470.09/13,148,272.09
  6. Step 6: Final answer
    x = 10,138,805.56

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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.