Home / 6,459,979.20-9,689,968.80-5,200,267.20

Finding the Fourth Proportional to 6,459,979.20, 9,689,968.80 and 5,200,267.20

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Solution

The fourth proportional to 6,459,979.20, 9,689,968.80 and 5,200,267.20 is: 7,800,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459,979.20 : 9,689,968.80 = 5,200,267.20 : x
  2. Step 2: Convert to fraction form
    6,459,979.20/9,689,968.80 = 5,200,267.20/x
  3. Step 3: Cross multiply
    6,459,979.20x = 9,689,968.80 × 5,200,267.20
  4. Step 4: Simplify right side
    6,459,979.20x = 50,390,426,919,663.37
  5. Step 5: Solve for x
    x = 50,390,426,919,663.37/6,459,979.20
  6. Step 6: Final answer
    x = 7,800,400.80

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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.