Home / 15,012,511.39-20,717,302.41-8,136,986.59

Finding the Fourth Proportional to 15,012,511.39, 20,717,302.41 and 8,136,986.59

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Solution

The fourth proportional to 15,012,511.39, 20,717,302.41 and 8,136,986.59 is: 11,229,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,511.39 : 20,717,302.41 = 8,136,986.59 : x
  2. Step 2: Convert to fraction form
    15,012,511.39/20,717,302.41 = 8,136,986.59/x
  3. Step 3: Cross multiply
    15,012,511.39x = 20,717,302.41 × 8,136,986.59
  4. Step 4: Simplify right side
    15,012,511.39x = 168,576,411,746,873.25
  5. Step 5: Solve for x
    x = 168,576,411,746,873.25/15,012,511.39
  6. Step 6: Final answer
    x = 11,229,061.38

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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.