Home / 1,119,950,736.34-1,680,006,826.03-429,857,991.38

Finding the Fourth Proportional to 1,119,950,736.34, 1,680,006,826.03 and 429,857,991.38

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Solution

The fourth proportional to 1,119,950,736.34, 1,680,006,826.03 and 429,857,991.38 is: 644,817,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,950,736.34 : 1,680,006,826.03 = 429,857,991.38 : x
  2. Step 2: Convert to fraction form
    1,119,950,736.34/1,680,006,826.03 = 429,857,991.38/x
  3. Step 3: Cross multiply
    1,119,950,736.34x = 1,680,006,826.03 × 429,857,991.38
  4. Step 4: Simplify right side
    1,119,950,736.34x = 722,164,359,741,944,832
  5. Step 5: Solve for x
    x = 722,164,359,741,944,832/1,119,950,736.34
  6. Step 6: Final answer
    x = 644,817,969.50

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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.