Home / 14,939,422.48-20,617,281.72-9,139,315.96

Finding the Fourth Proportional to 14,939,422.48, 20,617,281.72 and 9,139,315.96

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Solution

The fourth proportional to 14,939,422.48, 20,617,281.72 and 9,139,315.96 is: 12,612,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939,422.48 : 20,617,281.72 = 9,139,315.96 : x
  2. Step 2: Convert to fraction form
    14,939,422.48/20,617,281.72 = 9,139,315.96/x
  3. Step 3: Cross multiply
    14,939,422.48x = 20,617,281.72 × 9,139,315.96
  4. Step 4: Simplify right side
    14,939,422.48x = 188,427,851,875,412.25
  5. Step 5: Solve for x
    x = 188,427,851,875,412.25/14,939,422.48
  6. Step 6: Final answer
    x = 12,612,793.58

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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.