Home / 21,385,320.30-32,007,121.65-19,684,709.10

Finding the Fourth Proportional to 21,385,320.30, 32,007,121.65 and 19,684,709.10

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Solution

The fourth proportional to 21,385,320.30, 32,007,121.65 and 19,684,709.10 is: 29,461,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,320.30 : 32,007,121.65 = 19,684,709.10 : x
  2. Step 2: Convert to fraction form
    21,385,320.30/32,007,121.65 = 19,684,709.10/x
  3. Step 3: Cross multiply
    21,385,320.30x = 32,007,121.65 × 19,684,709.10
  4. Step 4: Simplify right side
    21,385,320.30x = 630,050,878,808,562
  5. Step 5: Solve for x
    x = 630,050,878,808,562/21,385,320.30
  6. Step 6: Final answer
    x = 29,461,839.71

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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.