Home / 19,407,979.20-29,111,968.80-8,047,243.20

Finding the Fourth Proportional to 19,407,979.20, 29,111,968.80 and 8,047,243.20

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Solution

The fourth proportional to 19,407,979.20, 29,111,968.80 and 8,047,243.20 is: 12,070,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407,979.20 : 29,111,968.80 = 8,047,243.20 : x
  2. Step 2: Convert to fraction form
    19,407,979.20/29,111,968.80 = 8,047,243.20/x
  3. Step 3: Cross multiply
    19,407,979.20x = 29,111,968.80 × 8,047,243.20
  4. Step 4: Simplify right side
    19,407,979.20x = 234,271,092,964,412.16
  5. Step 5: Solve for x
    x = 234,271,092,964,412.16/19,407,979.20
  6. Step 6: Final answer
    x = 12,070,864.80

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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.