Home / 390,421,635,600.06-538,752,288,874.95-219,110,481,341.82

Finding the Fourth Proportional to 390,421,635,600.06, 538,752,288,874.95 and 219,110,481,341.82

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Solution

The fourth proportional to 390,421,635,600.06, 538,752,288,874.95 and 219,110,481,341.82 is: 302,355,870,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,421,635,600.06 : 538,752,288,874.95 = 219,110,481,341.82 : x
  2. Step 2: Convert to fraction form
    390,421,635,600.06/538,752,288,874.95 = 219,110,481,341.82/x
  3. Step 3: Cross multiply
    390,421,635,600.06x = 538,752,288,874.95 × 219,110,481,341.82
  4. Step 4: Simplify right side
    390,421,635,600.06x = 118,046,273,339,397,553,258,496
  5. Step 5: Solve for x
    x = 118,046,273,339,397,553,258,496/390,421,635,600.06
  6. Step 6: Final answer
    x = 302,355,870,104.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.