Home / 358,419,359.64-537,685,726.47-128,383,351.32

Finding the Fourth Proportional to 358,419,359.64, 537,685,726.47 and 128,383,351.32

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Solution

The fourth proportional to 358,419,359.64, 537,685,726.47 and 128,383,351.32 is: 192,595,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,419,359.64 : 537,685,726.47 = 128,383,351.32 : x
  2. Step 2: Convert to fraction form
    358,419,359.64/537,685,726.47 = 128,383,351.32/x
  3. Step 3: Cross multiply
    358,419,359.64x = 537,685,726.47 × 128,383,351.32
  4. Step 4: Simplify right side
    358,419,359.64x = 69,029,895,521,147,432
  5. Step 5: Solve for x
    x = 69,029,895,521,147,432/358,419,359.64
  6. Step 6: Final answer
    x = 192,595,331.88

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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.