Home / 6,420,080.86-8,859,679.08-3,479,886.11

Finding the Fourth Proportional to 6,420,080.86, 8,859,679.08 and 3,479,886.11

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Solution

The fourth proportional to 6,420,080.86, 8,859,679.08 and 3,479,886.11 is: 4,802,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,080.86 : 8,859,679.08 = 3,479,886.11 : x
  2. Step 2: Convert to fraction form
    6,420,080.86/8,859,679.08 = 3,479,886.11/x
  3. Step 3: Cross multiply
    6,420,080.86x = 8,859,679.08 × 3,479,886.11
  4. Step 4: Simplify right side
    6,420,080.86x = 30,830,674,169,549.58
  5. Step 5: Solve for x
    x = 30,830,674,169,549.58/6,420,080.86
  6. Step 6: Final answer
    x = 4,802,225.21

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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.