Home / 28,979,497.04-39,992,664.99-15,927,218.60

Finding the Fourth Proportional to 28,979,497.04, 39,992,664.99 and 15,927,218.60

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Solution

The fourth proportional to 28,979,497.04, 39,992,664.99 and 15,927,218.60 is: 21,980,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,497.04 : 39,992,664.99 = 15,927,218.60 : x
  2. Step 2: Convert to fraction form
    28,979,497.04/39,992,664.99 = 15,927,218.60/x
  3. Step 3: Cross multiply
    28,979,497.04x = 39,992,664.99 × 15,927,218.60
  4. Step 4: Simplify right side
    28,979,497.04x = 636,971,917,492,333.50
  5. Step 5: Solve for x
    x = 636,971,917,492,333.50/28,979,497.04
  6. Step 6: Final answer
    x = 21,980,088.78

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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.