Home / 7,656,665.20-10,566,668.64-4,218,905.32

Finding the Fourth Proportional to 7,656,665.20, 10,566,668.64 and 4,218,905.32

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Solution

The fourth proportional to 7,656,665.20, 10,566,668.64 and 4,218,905.32 is: 5,822,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656,665.20 : 10,566,668.64 = 4,218,905.32 : x
  2. Step 2: Convert to fraction form
    7,656,665.20/10,566,668.64 = 4,218,905.32/x
  3. Step 3: Cross multiply
    7,656,665.20x = 10,566,668.64 × 4,218,905.32
  4. Step 4: Simplify right side
    7,656,665.20x = 44,579,774,539,973.17
  5. Step 5: Solve for x
    x = 44,579,774,539,973.17/7,656,665.20
  6. Step 6: Final answer
    x = 5,822,348.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.