Home / 42,123,228.16-63,208,157.28-20,558,008.48

Finding the Fourth Proportional to 42,123,228.16, 63,208,157.28 and 20,558,008.48

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Solution

The fourth proportional to 42,123,228.16, 63,208,157.28 and 20,558,008.48 is: 30,848,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123,228.16 : 63,208,157.28 = 20,558,008.48 : x
  2. Step 2: Convert to fraction form
    42,123,228.16/63,208,157.28 = 20,558,008.48/x
  3. Step 3: Cross multiply
    42,123,228.16x = 63,208,157.28 × 20,558,008.48
  4. Step 4: Simplify right side
    42,123,228.16x = 1,299,433,833,367,413.75
  5. Step 5: Solve for x
    x = 1,299,433,833,367,413.75/42,123,228.16
  6. Step 6: Final answer
    x = 30,848,391.50

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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.