Home / 216,806,890.92-299,199,500.10-122,713,558.44

Finding the Fourth Proportional to 216,806,890.92, 299,199,500.10 and 122,713,558.44

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Solution

The fourth proportional to 216,806,890.92, 299,199,500.10 and 122,713,558.44 is: 169,348,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,806,890.92 : 299,199,500.10 = 122,713,558.44 : x
  2. Step 2: Convert to fraction form
    216,806,890.92/299,199,500.10 = 122,713,558.44/x
  3. Step 3: Cross multiply
    216,806,890.92x = 299,199,500.10 × 122,713,558.44
  4. Step 4: Simplify right side
    216,806,890.92x = 36,715,835,340,740,136
  5. Step 5: Solve for x
    x = 36,715,835,340,740,136/216,806,890.92
  6. Step 6: Final answer
    x = 169,348,101.37

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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.