Home / 281,320,325.64-421,755,134.45-133,693,790.63

Finding the Fourth Proportional to 281,320,325.64, 421,755,134.45 and 133,693,790.63

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Solution

The fourth proportional to 281,320,325.64, 421,755,134.45 and 133,693,790.63 is: 200,433,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,320,325.64 : 421,755,134.45 = 133,693,790.63 : x
  2. Step 2: Convert to fraction form
    281,320,325.64/421,755,134.45 = 133,693,790.63/x
  3. Step 3: Cross multiply
    281,320,325.64x = 421,755,134.45 × 133,693,790.63
  4. Step 4: Simplify right side
    281,320,325.64x = 56,386,042,639,508,552
  5. Step 5: Solve for x
    x = 56,386,042,639,508,552/281,320,325.64
  6. Step 6: Final answer
    x = 200,433,589.40

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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.