Home / 390,421,635,605.06-538,752,288,881.84-219,110,481,346.82

Finding the Fourth Proportional to 390,421,635,605.06, 538,752,288,881.84 and 219,110,481,346.82

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Solution

The fourth proportional to 390,421,635,605.06, 538,752,288,881.84 and 219,110,481,346.82 is: 302,355,870,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,421,635,605.06 : 538,752,288,881.84 = 219,110,481,346.82 : x
  2. Step 2: Convert to fraction form
    390,421,635,605.06/538,752,288,881.84 = 219,110,481,346.82/x
  3. Step 3: Cross multiply
    390,421,635,605.06x = 538,752,288,881.84 × 219,110,481,346.82
  4. Step 4: Simplify right side
    390,421,635,605.06x = 118,046,273,343,601,000,841,216
  5. Step 5: Solve for x
    x = 118,046,273,343,601,000,841,216/390,421,635,605.06
  6. Step 6: Final answer
    x = 302,355,870,111.19

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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.