Home / 21,651,259.50-29,878,727.73-12,949,431.93

Finding the Fourth Proportional to 21,651,259.50, 29,878,727.73 and 12,949,431.93

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Solution

The fourth proportional to 21,651,259.50, 29,878,727.73 and 12,949,431.93 is: 17,870,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651,259.50 : 29,878,727.73 = 12,949,431.93 : x
  2. Step 2: Convert to fraction form
    21,651,259.50/29,878,727.73 = 12,949,431.93/x
  3. Step 3: Cross multiply
    21,651,259.50x = 29,878,727.73 × 12,949,431.93
  4. Step 4: Simplify right side
    21,651,259.50x = 386,912,550,894,638.44
  5. Step 5: Solve for x
    x = 386,912,550,894,638.44/21,651,259.50
  6. Step 6: Final answer
    x = 17,870,209.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.