Home / 645,139,246.60-967,834,841.10-256,896,008.20

Finding the Fourth Proportional to 645,139,246.60, 967,834,841.10 and 256,896,008.20

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Solution

The fourth proportional to 645,139,246.60, 967,834,841.10 and 256,896,008.20 is: 385,394,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,139,246.60 : 967,834,841.10 = 256,896,008.20 : x
  2. Step 2: Convert to fraction form
    645,139,246.60/967,834,841.10 = 256,896,008.20/x
  3. Step 3: Cross multiply
    645,139,246.60x = 967,834,841.10 × 256,896,008.20
  4. Step 4: Simplify right side
    645,139,246.60x = 248,632,907,275,471,296
  5. Step 5: Solve for x
    x = 248,632,907,275,471,296/645,139,246.60
  6. Step 6: Final answer
    x = 385,394,174.34

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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.