Home / 638,484,417.77-957,266,983.49-392,332,485.73

Finding the Fourth Proportional to 638,484,417.77, 957,266,983.49 and 392,332,485.73

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Solution

The fourth proportional to 638,484,417.77, 957,266,983.49 and 392,332,485.73 is: 588,216,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,484,417.77 : 957,266,983.49 = 392,332,485.73 : x
  2. Step 2: Convert to fraction form
    638,484,417.77/957,266,983.49 = 392,332,485.73/x
  3. Step 3: Cross multiply
    638,484,417.77x = 957,266,983.49 × 392,332,485.73
  4. Step 4: Simplify right side
    638,484,417.77x = 375,566,935,133,142,592
  5. Step 5: Solve for x
    x = 375,566,935,133,142,592/638,484,417.77
  6. Step 6: Final answer
    x = 588,216,289.51

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Double scale
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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.