Home / 21,789,035.10-32,683,552.65-13,285,979.10

Finding the Fourth Proportional to 21,789,035.10, 32,683,552.65 and 13,285,979.10

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Solution

The fourth proportional to 21,789,035.10, 32,683,552.65 and 13,285,979.10 is: 19,928,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,035.10 : 32,683,552.65 = 13,285,979.10 : x
  2. Step 2: Convert to fraction form
    21,789,035.10/32,683,552.65 = 13,285,979.10/x
  3. Step 3: Cross multiply
    21,789,035.10x = 32,683,552.65 × 13,285,979.10
  4. Step 4: Simplify right side
    21,789,035.10x = 434,232,997,421,649.56
  5. Step 5: Solve for x
    x = 434,232,997,421,649.56/21,789,035.10
  6. Step 6: Final answer
    x = 19,928,968.65

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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.