Home / 21,708,632.60-32,562,948.90-13,191,579.80

Finding the Fourth Proportional to 21,708,632.60, 32,562,948.90 and 13,191,579.80

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Solution

The fourth proportional to 21,708,632.60, 32,562,948.90 and 13,191,579.80 is: 19,787,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,632.60 : 32,562,948.90 = 13,191,579.80 : x
  2. Step 2: Convert to fraction form
    21,708,632.60/32,562,948.90 = 13,191,579.80/x
  3. Step 3: Cross multiply
    21,708,632.60x = 32,562,948.90 × 13,191,579.80
  4. Step 4: Simplify right side
    21,708,632.60x = 429,556,738,937,672.25
  5. Step 5: Solve for x
    x = 429,556,738,937,672.25/21,708,632.60
  6. Step 6: Final answer
    x = 19,787,369.70

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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.