Home / 78,863,065.28-172,567,727.65

Finding the Third Proportional to 78,863,065.28 and 172,567,727.65

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Solution

The third proportional to 78,863,065.28 and 172,567,727.65 is: 377,611,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863,065.28 : 172,567,727.65 = 172,567,727.65 : x
  2. Step 2: Convert to fraction form
    78,863,065.28/172,567,727.65 = 172,567,727.65/x
  3. Step 3: Cross multiply
    78,863,065.28x = 172,567,727.65 × 172,567,727.65
  4. Step 4: Simplify right side
    78,863,065.28x = 29,779,620,625,742,708
  5. Step 5: Solve for x
    x = 29,779,620,625,742,708/78,863,065.28
  6. Step 6: Final answer
    x = 377,611,756.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.