Home / 19,968,020.40-29,952,030.60-7,190,497.20

Finding the Fourth Proportional to 19,968,020.40, 29,952,030.60 and 7,190,497.20

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Solution

The fourth proportional to 19,968,020.40, 29,952,030.60 and 7,190,497.20 is: 10,785,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968,020.40 : 29,952,030.60 = 7,190,497.20 : x
  2. Step 2: Convert to fraction form
    19,968,020.40/29,952,030.60 = 7,190,497.20/x
  3. Step 3: Cross multiply
    19,968,020.40x = 29,952,030.60 × 7,190,497.20
  4. Step 4: Simplify right side
    19,968,020.40x = 215,369,992,163,614.34
  5. Step 5: Solve for x
    x = 215,369,992,163,614.34/19,968,020.40
  6. Step 6: Final answer
    x = 10,785,745.80

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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.