Home / 21,385,306.80-32,007,101.40-19,684,695.60

Finding the Fourth Proportional to 21,385,306.80, 32,007,101.40 and 19,684,695.60

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Solution

The fourth proportional to 21,385,306.80, 32,007,101.40 and 19,684,695.60 is: 29,461,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,306.80 : 32,007,101.40 = 19,684,695.60 : x
  2. Step 2: Convert to fraction form
    21,385,306.80/32,007,101.40 = 19,684,695.60/x
  3. Step 3: Cross multiply
    21,385,306.80x = 32,007,101.40 × 19,684,695.60
  4. Step 4: Simplify right side
    21,385,306.80x = 630,050,048,097,333.88
  5. Step 5: Solve for x
    x = 630,050,048,097,333.88/21,385,306.80
  6. Step 6: Final answer
    x = 29,461,819.46

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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.