Home / 15,013,389.26-20,718,457.35-8,137,869.50

Finding the Fourth Proportional to 15,013,389.26, 20,718,457.35 and 8,137,869.50

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Solution

The fourth proportional to 15,013,389.26, 20,718,457.35 and 8,137,869.50 is: 11,230,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,389.26 : 20,718,457.35 = 8,137,869.50 : x
  2. Step 2: Convert to fraction form
    15,013,389.26/20,718,457.35 = 8,137,869.50/x
  3. Step 3: Cross multiply
    15,013,389.26x = 20,718,457.35 × 8,137,869.50
  4. Step 4: Simplify right side
    15,013,389.26x = 168,604,102,155,615.84
  5. Step 5: Solve for x
    x = 168,604,102,155,615.84/15,013,389.26
  6. Step 6: Final answer
    x = 11,230,249.16

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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.