Home / 7,039,390.78-9,714,359.28-3,820,126.78

Finding the Fourth Proportional to 7,039,390.78, 9,714,359.28 and 3,820,126.78

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Solution

The fourth proportional to 7,039,390.78, 9,714,359.28 and 3,820,126.78 is: 5,271,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039,390.78 : 9,714,359.28 = 3,820,126.78 : x
  2. Step 2: Convert to fraction form
    7,039,390.78/9,714,359.28 = 3,820,126.78/x
  3. Step 3: Cross multiply
    7,039,390.78x = 9,714,359.28 × 3,820,126.78
  4. Step 4: Simplify right side
    7,039,390.78x = 37,110,084,036,069.52
  5. Step 5: Solve for x
    x = 37,110,084,036,069.52/7,039,390.78
  6. Step 6: Final answer
    x = 5,271,774.96

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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.