Home / 19,421,406.40-29,142,607.20-8,640,371.20

Finding the Fourth Proportional to 19,421,406.40, 29,142,607.20 and 8,640,371.20

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Solution

The fourth proportional to 19,421,406.40, 29,142,607.20 and 8,640,371.20 is: 12,965,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421,406.40 : 29,142,607.20 = 8,640,371.20 : x
  2. Step 2: Convert to fraction form
    19,421,406.40/29,142,607.20 = 8,640,371.20/x
  3. Step 3: Cross multiply
    19,421,406.40x = 29,142,607.20 × 8,640,371.20
  4. Step 4: Simplify right side
    19,421,406.40x = 251,802,943,943,792.62
  5. Step 5: Solve for x
    x = 251,802,943,943,792.62/19,421,406.40
  6. Step 6: Final answer
    x = 12,965,227.07

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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.