Home / 8,240,720.20-12,366,985.20-4,642,667.80

Finding the Fourth Proportional to 8,240,720.20, 12,366,985.20 and 4,642,667.80

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Solution

The fourth proportional to 8,240,720.20, 12,366,985.20 and 4,642,667.80 is: 6,967,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240,720.20 : 12,366,985.20 = 4,642,667.80 : x
  2. Step 2: Convert to fraction form
    8,240,720.20/12,366,985.20 = 4,642,667.80/x
  3. Step 3: Cross multiply
    8,240,720.20x = 12,366,985.20 × 4,642,667.80
  4. Step 4: Simplify right side
    8,240,720.20x = 57,415,803,971,116.55
  5. Step 5: Solve for x
    x = 57,415,803,971,116.55/8,240,720.20
  6. Step 6: Final answer
    x = 6,967,328.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.