Home / 15,515,475.45-21,411,355.95-8,992,888.29

Finding the Fourth Proportional to 15,515,475.45, 21,411,355.95 and 8,992,888.29

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Solution

The fourth proportional to 15,515,475.45, 21,411,355.95 and 8,992,888.29 is: 12,410,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,475.45 : 21,411,355.95 = 8,992,888.29 : x
  2. Step 2: Convert to fraction form
    15,515,475.45/21,411,355.95 = 8,992,888.29/x
  3. Step 3: Cross multiply
    15,515,475.45x = 21,411,355.95 × 8,992,888.29
  4. Step 4: Simplify right side
    15,515,475.45x = 192,549,932,195,776.81
  5. Step 5: Solve for x
    x = 192,549,932,195,776.81/15,515,475.45
  6. Step 6: Final answer
    x = 12,410,185.74

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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.