Home / 21,708,633.60-32,562,950.40-13,191,580.80

Finding the Fourth Proportional to 21,708,633.60, 32,562,950.40 and 13,191,580.80

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Solution

The fourth proportional to 21,708,633.60, 32,562,950.40 and 13,191,580.80 is: 19,787,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,633.60 : 32,562,950.40 = 13,191,580.80 : x
  2. Step 2: Convert to fraction form
    21,708,633.60/32,562,950.40 = 13,191,580.80/x
  3. Step 3: Cross multiply
    21,708,633.60x = 32,562,950.40 × 13,191,580.80
  4. Step 4: Simplify right side
    21,708,633.60x = 429,556,791,287,992.31
  5. Step 5: Solve for x
    x = 429,556,791,287,992.31/21,708,633.60
  6. Step 6: Final answer
    x = 19,787,371.20

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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.