Home / 421,402,488,676.14-581,435,762,935.14-238,499,590,252.80

Finding the Fourth Proportional to 421,402,488,676.14, 581,435,762,935.14 and 238,499,590,252.80

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Solution

The fourth proportional to 421,402,488,676.14, 581,435,762,935.14 and 238,499,590,252.80 is: 329,073,023,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,402,488,676.14 : 581,435,762,935.14 = 238,499,590,252.80 : x
  2. Step 2: Convert to fraction form
    421,402,488,676.14/581,435,762,935.14 = 238,499,590,252.80/x
  3. Step 3: Cross multiply
    421,402,488,676.14x = 581,435,762,935.14 × 238,499,590,252.80
  4. Step 4: Simplify right side
    421,402,488,676.14x = 138,672,191,218,355,049,332,736
  5. Step 5: Solve for x
    x = 138,672,191,218,355,049,332,736/421,402,488,676.14
  6. Step 6: Final answer
    x = 329,073,023,877.96

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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.