Home / 209,893,053.98-289,745,293.50-135,589,843.10

Finding the Fourth Proportional to 209,893,053.98, 289,745,293.50 and 135,589,843.10

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Solution

The fourth proportional to 209,893,053.98, 289,745,293.50 and 135,589,843.10 is: 187,173,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,893,053.98 : 289,745,293.50 = 135,589,843.10 : x
  2. Step 2: Convert to fraction form
    209,893,053.98/289,745,293.50 = 135,589,843.10/x
  3. Step 3: Cross multiply
    209,893,053.98x = 289,745,293.50 × 135,589,843.10
  4. Step 4: Simplify right side
    209,893,053.98x = 39,286,518,884,628,448
  5. Step 5: Solve for x
    x = 39,286,518,884,628,448/209,893,053.98
  6. Step 6: Final answer
    x = 187,173,982.84

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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.