Home / 429,736,861.72-644,604,485.10-134,654,570.92

Finding the Fourth Proportional to 429,736,861.72, 644,604,485.10 and 134,654,570.92

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Solution

The fourth proportional to 429,736,861.72, 644,604,485.10 and 134,654,570.92 is: 201,981,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,736,861.72 : 644,604,485.10 = 134,654,570.92 : x
  2. Step 2: Convert to fraction form
    429,736,861.72/644,604,485.10 = 134,654,570.92/x
  3. Step 3: Cross multiply
    429,736,861.72x = 644,604,485.10 × 134,654,570.92
  4. Step 4: Simplify right side
    429,736,861.72x = 86,798,940,354,248,032
  5. Step 5: Solve for x
    x = 86,798,940,354,248,032/429,736,861.72
  6. Step 6: Final answer
    x = 201,981,603.36

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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.