Home / 410,479,506,936.79-615,288,250,041-138,109,196,107.81

Finding the Fourth Proportional to 410,479,506,936.79, 615,288,250,041 and 138,109,196,107.81

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Solution

The fourth proportional to 410,479,506,936.79, 615,288,250,041 and 138,109,196,107.81 is: 207,018,777,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,479,506,936.79 : 615,288,250,041 = 138,109,196,107.81 : x
  2. Step 2: Convert to fraction form
    410,479,506,936.79/615,288,250,041 = 138,109,196,107.81/x
  3. Step 3: Cross multiply
    410,479,506,936.79x = 615,288,250,041 × 138,109,196,107.81
  4. Step 4: Simplify right side
    410,479,506,936.79x = 84,976,965,587,743,709,069,312
  5. Step 5: Solve for x
    x = 84,976,965,587,743,709,069,312/410,479,506,936.79
  6. Step 6: Final answer
    x = 207,018,777,190.33

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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.