Home / 28,519,689.76-39,356,904-15,467,236.72

Finding the Fourth Proportional to 28,519,689.76, 39,356,904 and 15,467,236.72

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Solution

The fourth proportional to 28,519,689.76, 39,356,904 and 15,467,236.72 is: 21,344,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519,689.76 : 39,356,904 = 15,467,236.72 : x
  2. Step 2: Convert to fraction form
    28,519,689.76/39,356,904 = 15,467,236.72/x
  3. Step 3: Cross multiply
    28,519,689.76x = 39,356,904 × 15,467,236.72
  4. Step 4: Simplify right side
    28,519,689.76x = 608,742,550,734,314.88
  5. Step 5: Solve for x
    x = 608,742,550,734,314.88/28,519,689.76
  6. Step 6: Final answer
    x = 21,344,641.40

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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.