Home / 15,525,980.66-21,425,998.55-8,556,913.59

Finding the Fourth Proportional to 15,525,980.66, 21,425,998.55 and 8,556,913.59

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Solution

The fourth proportional to 15,525,980.66, 21,425,998.55 and 8,556,913.59 is: 11,808,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525,980.66 : 21,425,998.55 = 8,556,913.59 : x
  2. Step 2: Convert to fraction form
    15,525,980.66/21,425,998.55 = 8,556,913.59/x
  3. Step 3: Cross multiply
    15,525,980.66x = 21,425,998.55 × 8,556,913.59
  4. Step 4: Simplify right side
    15,525,980.66x = 183,340,418,129,030.75
  5. Step 5: Solve for x
    x = 183,340,418,129,030.75/15,525,980.66
  6. Step 6: Final answer
    x = 11,808,620.80

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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.