Home / 272,148,001.20-408,222,001.80-99,630,442.80

Finding the Fourth Proportional to 272,148,001.20, 408,222,001.80 and 99,630,442.80

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Solution

The fourth proportional to 272,148,001.20, 408,222,001.80 and 99,630,442.80 is: 149,445,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,148,001.20 : 408,222,001.80 = 99,630,442.80 : x
  2. Step 2: Convert to fraction form
    272,148,001.20/408,222,001.80 = 99,630,442.80/x
  3. Step 3: Cross multiply
    272,148,001.20x = 408,222,001.80 × 99,630,442.80
  4. Step 4: Simplify right side
    272,148,001.20x = 40,671,338,800,036,400
  5. Step 5: Solve for x
    x = 40,671,338,800,036,400/272,148,001.20
  6. Step 6: Final answer
    x = 149,445,664.20

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1.5x scale

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.