Home / 426,314,898.52-639,495,603.78-135,160,964.44

Finding the Fourth Proportional to 426,314,898.52, 639,495,603.78 and 135,160,964.44

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Solution

The fourth proportional to 426,314,898.52, 639,495,603.78 and 135,160,964.44 is: 202,748,819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,314,898.52 : 639,495,603.78 = 135,160,964.44 : x
  2. Step 2: Convert to fraction form
    426,314,898.52/639,495,603.78 = 135,160,964.44/x
  3. Step 3: Cross multiply
    426,314,898.52x = 639,495,603.78 × 135,160,964.44
  4. Step 4: Simplify right side
    426,314,898.52x = 86,434,842,562,044,912
  5. Step 5: Solve for x
    x = 86,434,842,562,044,912/426,314,898.52
  6. Step 6: Final answer
    x = 202,748,819.86

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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.