Home / 20,678,935.05-31,004,038.44-9,158,124.33

Finding the Fourth Proportional to 20,678,935.05, 31,004,038.44 and 9,158,124.33

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Solution

The fourth proportional to 20,678,935.05, 31,004,038.44 and 9,158,124.33 is: 13,730,825.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,935.05 : 31,004,038.44 = 9,158,124.33 : x
  2. Step 2: Convert to fraction form
    20,678,935.05/31,004,038.44 = 9,158,124.33/x
  3. Step 3: Cross multiply
    20,678,935.05x = 31,004,038.44 × 9,158,124.33
  4. Step 4: Simplify right side
    20,678,935.05x = 283,938,838,765,619.25
  5. Step 5: Solve for x
    x = 283,938,838,765,619.25/20,678,935.05
  6. Step 6: Final answer
    x = 13,730,825.02

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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.