Home / 19,928,200.65-29,892,300.98-7,147,044.60

Finding the Fourth Proportional to 19,928,200.65, 29,892,300.98 and 7,147,044.60

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Solution

The fourth proportional to 19,928,200.65, 29,892,300.98 and 7,147,044.60 is: 10,720,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,200.65 : 29,892,300.98 = 7,147,044.60 : x
  2. Step 2: Convert to fraction form
    19,928,200.65/29,892,300.98 = 7,147,044.60/x
  3. Step 3: Cross multiply
    19,928,200.65x = 29,892,300.98 × 7,147,044.60
  4. Step 4: Simplify right side
    19,928,200.65x = 213,641,608,264,948.50
  5. Step 5: Solve for x
    x = 213,641,608,264,948.50/19,928,200.65
  6. Step 6: Final answer
    x = 10,720,566.90

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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.