Home / 429,734,981.79-644,601,668.66-134,652,691.80

Finding the Fourth Proportional to 429,734,981.79, 644,601,668.66 and 134,652,691.80

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Solution

The fourth proportional to 429,734,981.79, 644,601,668.66 and 134,652,691.80 is: 201,978,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,734,981.79 : 644,601,668.66 = 134,652,691.80 : x
  2. Step 2: Convert to fraction form
    429,734,981.79/644,601,668.66 = 134,652,691.80/x
  3. Step 3: Cross multiply
    429,734,981.79x = 644,601,668.66 × 134,652,691.80
  4. Step 4: Simplify right side
    429,734,981.79x = 86,797,349,823,167,440
  5. Step 5: Solve for x
    x = 86,797,349,823,167,440/429,734,981.79
  6. Step 6: Final answer
    x = 201,978,785.77

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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.