Home / 19,878,812.40-29,846,212.20-15,623,785.20

Finding the Fourth Proportional to 19,878,812.40, 29,846,212.20 and 15,623,785.20

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Solution

The fourth proportional to 19,878,812.40, 29,846,212.20 and 15,623,785.20 is: 23,457,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878,812.40 : 29,846,212.20 = 15,623,785.20 : x
  2. Step 2: Convert to fraction form
    19,878,812.40/29,846,212.20 = 15,623,785.20/x
  3. Step 3: Cross multiply
    19,878,812.40x = 29,846,212.20 × 15,623,785.20
  4. Step 4: Simplify right side
    19,878,812.40x = 466,310,808,446,419.38
  5. Step 5: Solve for x
    x = 466,310,808,446,419.38/19,878,812.40
  6. Step 6: Final answer
    x = 23,457,679.42

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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.