Home / 6,391,290.77-8,819,967.18-3,490,681.79

Finding the Fourth Proportional to 6,391,290.77, 8,819,967.18 and 3,490,681.79

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Solution

The fourth proportional to 6,391,290.77, 8,819,967.18 and 3,490,681.79 is: 4,817,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,290.77 : 8,819,967.18 = 3,490,681.79 : x
  2. Step 2: Convert to fraction form
    6,391,290.77/8,819,967.18 = 3,490,681.79/x
  3. Step 3: Cross multiply
    6,391,290.77x = 8,819,967.18 × 3,490,681.79
  4. Step 4: Simplify right side
    6,391,290.77x = 30,787,698,779,523.82
  5. Step 5: Solve for x
    x = 30,787,698,779,523.82/6,391,290.77
  6. Step 6: Final answer
    x = 4,817,133.18

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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.