Home / 130,962,389.84-196,410,065.12-38,824,581.92

Finding the Fourth Proportional to 130,962,389.84, 196,410,065.12 and 38,824,581.92

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Solution

The fourth proportional to 130,962,389.84, 196,410,065.12 and 38,824,581.92 is: 58,226,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,962,389.84 : 196,410,065.12 = 38,824,581.92 : x
  2. Step 2: Convert to fraction form
    130,962,389.84/196,410,065.12 = 38,824,581.92/x
  3. Step 3: Cross multiply
    130,962,389.84x = 196,410,065.12 × 38,824,581.92
  4. Step 4: Simplify right side
    130,962,389.84x = 7,625,538,663,163,975
  5. Step 5: Solve for x
    x = 7,625,538,663,163,975/130,962,389.84
  6. Step 6: Final answer
    x = 58,226,935.78

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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.