Home / 19,122,888.57-28,689,940.08-6,168,779.70

Finding the Fourth Proportional to 19,122,888.57, 28,689,940.08 and 6,168,779.70

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Solution

The fourth proportional to 19,122,888.57, 28,689,940.08 and 6,168,779.70 is: 9,254,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122,888.57 : 28,689,940.08 = 6,168,779.70 : x
  2. Step 2: Convert to fraction form
    19,122,888.57/28,689,940.08 = 6,168,779.70/x
  3. Step 3: Cross multiply
    19,122,888.57x = 28,689,940.08 × 6,168,779.70
  4. Step 4: Simplify right side
    19,122,888.57x = 176,981,919,959,720.38
  5. Step 5: Solve for x
    x = 176,981,919,959,720.38/19,122,888.57
  6. Step 6: Final answer
    x = 9,254,978.36

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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.