Home / 12,221,609.60-18,346,411.20-7,175,763.20

Finding the Fourth Proportional to 12,221,609.60, 18,346,411.20 and 7,175,763.20

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Solution

The fourth proportional to 12,221,609.60, 18,346,411.20 and 7,175,763.20 is: 10,771,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221,609.60 : 18,346,411.20 = 7,175,763.20 : x
  2. Step 2: Convert to fraction form
    12,221,609.60/18,346,411.20 = 7,175,763.20/x
  3. Step 3: Cross multiply
    12,221,609.60x = 18,346,411.20 × 7,175,763.20
  4. Step 4: Simplify right side
    12,221,609.60x = 131,649,502,341,027.84
  5. Step 5: Solve for x
    x = 131,649,502,341,027.84/12,221,609.60
  6. Step 6: Final answer
    x = 10,771,862.84

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1.5x scale

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.