Home / 209,127,089.29-288,593,788.10-115,039,210.94

Finding the Fourth Proportional to 209,127,089.29, 288,593,788.10 and 115,039,210.94

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Solution

The fourth proportional to 209,127,089.29, 288,593,788.10 and 115,039,210.94 is: 158,753,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,127,089.29 : 288,593,788.10 = 115,039,210.94 : x
  2. Step 2: Convert to fraction form
    209,127,089.29/288,593,788.10 = 115,039,210.94/x
  3. Step 3: Cross multiply
    209,127,089.29x = 288,593,788.10 × 115,039,210.94
  4. Step 4: Simplify right side
    209,127,089.29x = 33,199,601,666,218,644
  5. Step 5: Solve for x
    x = 33,199,601,666,218,644/209,127,089.29
  6. Step 6: Final answer
    x = 158,753,233.64

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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.