Home / 272,148,001.70-408,222,002.55-99,630,443.30

Finding the Fourth Proportional to 272,148,001.70, 408,222,002.55 and 99,630,443.30

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Solution

The fourth proportional to 272,148,001.70, 408,222,002.55 and 99,630,443.30 is: 149,445,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,148,001.70 : 408,222,002.55 = 99,630,443.30 : x
  2. Step 2: Convert to fraction form
    272,148,001.70/408,222,002.55 = 99,630,443.30/x
  3. Step 3: Cross multiply
    272,148,001.70x = 408,222,002.55 × 99,630,443.30
  4. Step 4: Simplify right side
    272,148,001.70x = 40,671,339,078,870,232
  5. Step 5: Solve for x
    x = 40,671,339,078,870,232/272,148,001.70
  6. Step 6: Final answer
    x = 149,445,664.95

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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.