Home / 21,491,810.40-32,237,715.60-19,849,519.20

Finding the Fourth Proportional to 21,491,810.40, 32,237,715.60 and 19,849,519.20

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Solution

The fourth proportional to 21,491,810.40, 32,237,715.60 and 19,849,519.20 is: 29,774,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491,810.40 : 32,237,715.60 = 19,849,519.20 : x
  2. Step 2: Convert to fraction form
    21,491,810.40/32,237,715.60 = 19,849,519.20/x
  3. Step 3: Cross multiply
    21,491,810.40x = 32,237,715.60 × 19,849,519.20
  4. Step 4: Simplify right side
    21,491,810.40x = 639,903,154,766,339.50
  5. Step 5: Solve for x
    x = 639,903,154,766,339.50/21,491,810.40
  6. Step 6: Final answer
    x = 29,774,278.80

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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.