Home / 12,128,045.90-18,192,068.85-10,932,303.65

Finding the Fourth Proportional to 12,128,045.90, 18,192,068.85 and 10,932,303.65

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Solution

The fourth proportional to 12,128,045.90, 18,192,068.85 and 10,932,303.65 is: 16,398,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,045.90 : 18,192,068.85 = 10,932,303.65 : x
  2. Step 2: Convert to fraction form
    12,128,045.90/18,192,068.85 = 10,932,303.65/x
  3. Step 3: Cross multiply
    12,128,045.90x = 18,192,068.85 × 10,932,303.65
  4. Step 4: Simplify right side
    12,128,045.90x = 198,881,220,689,906.31
  5. Step 5: Solve for x
    x = 198,881,220,689,906.31/12,128,045.90
  6. Step 6: Final answer
    x = 16,398,455.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.