Home / 2,787,666.32-3,842,907.54-1,970,428.16

Finding the Fourth Proportional to 2,787,666.32, 3,842,907.54 and 1,970,428.16

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Solution

The fourth proportional to 2,787,666.32, 3,842,907.54 and 1,970,428.16 is: 2,716,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,666.32 : 3,842,907.54 = 1,970,428.16 : x
  2. Step 2: Convert to fraction form
    2,787,666.32/3,842,907.54 = 1,970,428.16/x
  3. Step 3: Cross multiply
    2,787,666.32x = 3,842,907.54 × 1,970,428.16
  4. Step 4: Simplify right side
    2,787,666.32x = 7,572,173,233,092.33
  5. Step 5: Solve for x
    x = 7,572,173,233,092.33/2,787,666.32
  6. Step 6: Final answer
    x = 2,716,312.63

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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.