Home / 429,736,862.72-644,604,486.60-134,654,571.92

Finding the Fourth Proportional to 429,736,862.72, 644,604,486.60 and 134,654,571.92

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Solution

The fourth proportional to 429,736,862.72, 644,604,486.60 and 134,654,571.92 is: 201,981,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,736,862.72 : 644,604,486.60 = 134,654,571.92 : x
  2. Step 2: Convert to fraction form
    429,736,862.72/644,604,486.60 = 134,654,571.92/x
  3. Step 3: Cross multiply
    429,736,862.72x = 644,604,486.60 × 134,654,571.92
  4. Step 4: Simplify right side
    429,736,862.72x = 86,798,941,200,834,368
  5. Step 5: Solve for x
    x = 86,798,941,200,834,368/429,736,862.72
  6. Step 6: Final answer
    x = 201,981,604.86

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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.