Home / 429,558,103,919.79-644,446,602,168.43-127,381,745,115.27

Finding the Fourth Proportional to 429,558,103,919.79, 644,446,602,168.43 and 127,381,745,115.27

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Solution

The fourth proportional to 429,558,103,919.79, 644,446,602,168.43 and 127,381,745,115.27 is: 191,105,073,024.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,558,103,919.79 : 644,446,602,168.43 = 127,381,745,115.27 : x
  2. Step 2: Convert to fraction form
    429,558,103,919.79/644,446,602,168.43 = 127,381,745,115.27/x
  3. Step 3: Cross multiply
    429,558,103,919.79x = 644,446,602,168.43 × 127,381,745,115.27
  4. Step 4: Simplify right side
    429,558,103,919.79x = 82,090,732,817,820,761,980,928
  5. Step 5: Solve for x
    x = 82,090,732,817,820,761,980,928/429,558,103,919.79
  6. Step 6: Final answer
    x = 191,105,073,024.42

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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.