Home / 21,360,345.60-32,043,628.80-6,979,929.60

Finding the Fourth Proportional to 21,360,345.60, 32,043,628.80 and 6,979,929.60

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Solution

The fourth proportional to 21,360,345.60, 32,043,628.80 and 6,979,929.60 is: 10,470,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360,345.60 : 32,043,628.80 = 6,979,929.60 : x
  2. Step 2: Convert to fraction form
    21,360,345.60/32,043,628.80 = 6,979,929.60/x
  3. Step 3: Cross multiply
    21,360,345.60x = 32,043,628.80 × 6,979,929.60
  4. Step 4: Simplify right side
    21,360,345.60x = 223,662,273,152,532.47
  5. Step 5: Solve for x
    x = 223,662,273,152,532.47/21,360,345.60
  6. Step 6: Final answer
    x = 10,470,910.79

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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.