Home / 272,059,747.20-408,089,620.80-261,478,166.40

Finding the Fourth Proportional to 272,059,747.20, 408,089,620.80 and 261,478,166.40

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Solution

The fourth proportional to 272,059,747.20, 408,089,620.80 and 261,478,166.40 is: 392,217,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,059,747.20 : 408,089,620.80 = 261,478,166.40 : x
  2. Step 2: Convert to fraction form
    272,059,747.20/408,089,620.80 = 261,478,166.40/x
  3. Step 3: Cross multiply
    272,059,747.20x = 408,089,620.80 × 261,478,166.40
  4. Step 4: Simplify right side
    272,059,747.20x = 106,706,525,773,655,312
  5. Step 5: Solve for x
    x = 106,706,525,773,655,312/272,059,747.20
  6. Step 6: Final answer
    x = 392,217,249.60

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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.