Home / 80,962,568.28-111,718,742.40-45,678,316.32

Finding the Fourth Proportional to 80,962,568.28, 111,718,742.40 and 45,678,316.32

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Solution

The fourth proportional to 80,962,568.28, 111,718,742.40 and 45,678,316.32 is: 63,030,659.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,962,568.28 : 111,718,742.40 = 45,678,316.32 : x
  2. Step 2: Convert to fraction form
    80,962,568.28/111,718,742.40 = 45,678,316.32/x
  3. Step 3: Cross multiply
    80,962,568.28x = 111,718,742.40 × 45,678,316.32
  4. Step 4: Simplify right side
    80,962,568.28x = 5,103,124,054,219,796
  5. Step 5: Solve for x
    x = 5,103,124,054,219,796/80,962,568.28
  6. Step 6: Final answer
    x = 63,030,659.26

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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.