Home / 18,140,362.17-25,033,698.86-9,991,600.17

Finding the Fourth Proportional to 18,140,362.17, 25,033,698.86 and 9,991,600.17

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Solution

The fourth proportional to 18,140,362.17, 25,033,698.86 and 9,991,600.17 is: 13,788,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140,362.17 : 25,033,698.86 = 9,991,600.17 : x
  2. Step 2: Convert to fraction form
    18,140,362.17/25,033,698.86 = 9,991,600.17/x
  3. Step 3: Cross multiply
    18,140,362.17x = 25,033,698.86 × 9,991,600.17
  4. Step 4: Simplify right side
    18,140,362.17x = 250,126,709,735,346.81
  5. Step 5: Solve for x
    x = 250,126,709,735,346.81/18,140,362.17
  6. Step 6: Final answer
    x = 13,788,407.72

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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.