Home / 130,408,909.20-195,613,363.80-69,942,733.20

Finding the Fourth Proportional to 130,408,909.20, 195,613,363.80 and 69,942,733.20

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Solution

The fourth proportional to 130,408,909.20, 195,613,363.80 and 69,942,733.20 is: 104,914,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,408,909.20 : 195,613,363.80 = 69,942,733.20 : x
  2. Step 2: Convert to fraction form
    130,408,909.20/195,613,363.80 = 69,942,733.20/x
  3. Step 3: Cross multiply
    130,408,909.20x = 195,613,363.80 × 69,942,733.20
  4. Step 4: Simplify right side
    130,408,909.20x = 13,681,733,314,617,940
  5. Step 5: Solve for x
    x = 13,681,733,314,617,940/130,408,909.20
  6. Step 6: Final answer
    x = 104,914,099.80

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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.