Home / 421,402,488,680.36-581,435,762,940.92-238,499,590,257.02

Finding the Fourth Proportional to 421,402,488,680.36, 581,435,762,940.92 and 238,499,590,257.02

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Solution

The fourth proportional to 421,402,488,680.36, 581,435,762,940.92 and 238,499,590,257.02 is: 329,073,023,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,402,488,680.36 : 581,435,762,940.92 = 238,499,590,257.02 : x
  2. Step 2: Convert to fraction form
    421,402,488,680.36/581,435,762,940.92 = 238,499,590,257.02/x
  3. Step 3: Cross multiply
    421,402,488,680.36x = 581,435,762,940.92 × 238,499,590,257.02
  4. Step 4: Simplify right side
    421,402,488,680.36x = 138,672,191,222,187,233,902,592
  5. Step 5: Solve for x
    x = 138,672,191,222,187,233,902,592/421,402,488,680.36
  6. Step 6: Final answer
    x = 329,073,023,883.76

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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.