Home / 260,808,212.70-391,212,319.05-79,031,771.10

Finding the Fourth Proportional to 260,808,212.70, 391,212,319.05 and 79,031,771.10

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Solution

The fourth proportional to 260,808,212.70, 391,212,319.05 and 79,031,771.10 is: 118,547,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,808,212.70 : 391,212,319.05 = 79,031,771.10 : x
  2. Step 2: Convert to fraction form
    260,808,212.70/391,212,319.05 = 79,031,771.10/x
  3. Step 3: Cross multiply
    260,808,212.70x = 391,212,319.05 × 79,031,771.10
  4. Step 4: Simplify right side
    260,808,212.70x = 30,918,202,450,659,768
  5. Step 5: Solve for x
    x = 30,918,202,450,659,768/260,808,212.70
  6. Step 6: Final answer
    x = 118,547,656.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.