Home / 21,491,762.40-32,237,643.60-19,849,471.20

Finding the Fourth Proportional to 21,491,762.40, 32,237,643.60 and 19,849,471.20

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Solution

The fourth proportional to 21,491,762.40, 32,237,643.60 and 19,849,471.20 is: 29,774,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491,762.40 : 32,237,643.60 = 19,849,471.20 : x
  2. Step 2: Convert to fraction form
    21,491,762.40/32,237,643.60 = 19,849,471.20/x
  3. Step 3: Cross multiply
    21,491,762.40x = 32,237,643.60 × 19,849,471.20
  4. Step 4: Simplify right side
    21,491,762.40x = 639,900,178,194,064.38
  5. Step 5: Solve for x
    x = 639,900,178,194,064.38/21,491,762.40
  6. Step 6: Final answer
    x = 29,774,206.80

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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.