Home / 11,116,869.78-15,329,097.82-7,242,205.62

Finding the Fourth Proportional to 11,116,869.78, 15,329,097.82 and 7,242,205.62

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Solution

The fourth proportional to 11,116,869.78, 15,329,097.82 and 7,242,205.62 is: 9,986,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116,869.78 : 15,329,097.82 = 7,242,205.62 : x
  2. Step 2: Convert to fraction form
    11,116,869.78/15,329,097.82 = 7,242,205.62/x
  3. Step 3: Cross multiply
    11,116,869.78x = 15,329,097.82 × 7,242,205.62
  4. Step 4: Simplify right side
    11,116,869.78x = 111,016,478,381,533.75
  5. Step 5: Solve for x
    x = 111,016,478,381,533.75/11,116,869.78
  6. Step 6: Final answer
    x = 9,986,307.35

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1.5x scale

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.