Home / 193,111,278.80-289,666,918.20-168,168,981.20

Finding the Fourth Proportional to 193,111,278.80, 289,666,918.20 and 168,168,981.20

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Solution

The fourth proportional to 193,111,278.80, 289,666,918.20 and 168,168,981.20 is: 252,253,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,111,278.80 : 289,666,918.20 = 168,168,981.20 : x
  2. Step 2: Convert to fraction form
    193,111,278.80/289,666,918.20 = 168,168,981.20/x
  3. Step 3: Cross multiply
    193,111,278.80x = 289,666,918.20 × 168,168,981.20
  4. Step 4: Simplify right side
    193,111,278.80x = 48,712,990,521,037,736
  5. Step 5: Solve for x
    x = 48,712,990,521,037,736/193,111,278.80
  6. Step 6: Final answer
    x = 252,253,471.80

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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.