Home / 12,479,511.17-17,221,403.39-6,972,931.31

Finding the Fourth Proportional to 12,479,511.17, 17,221,403.39 and 6,972,931.31

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Solution

The fourth proportional to 12,479,511.17, 17,221,403.39 and 6,972,931.31 is: 9,622,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,511.17 : 17,221,403.39 = 6,972,931.31 : x
  2. Step 2: Convert to fraction form
    12,479,511.17/17,221,403.39 = 6,972,931.31/x
  3. Step 3: Cross multiply
    12,479,511.17x = 17,221,403.39 × 6,972,931.31
  4. Step 4: Simplify right side
    12,479,511.17x = 120,083,662,779,299.47
  5. Step 5: Solve for x
    x = 120,083,662,779,299.47/12,479,511.17
  6. Step 6: Final answer
    x = 9,622,465.26

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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.