Home / 42,390,003.60-63,593,299.80-18,128,883.60

Finding the Fourth Proportional to 42,390,003.60, 63,593,299.80 and 18,128,883.60

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Solution

The fourth proportional to 42,390,003.60, 63,593,299.80 and 18,128,883.60 is: 27,196,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,390,003.60 : 63,593,299.80 = 18,128,883.60 : x
  2. Step 2: Convert to fraction form
    42,390,003.60/63,593,299.80 = 18,128,883.60/x
  3. Step 3: Cross multiply
    42,390,003.60x = 63,593,299.80 × 18,128,883.60
  4. Step 4: Simplify right side
    42,390,003.60x = 1,152,875,529,814,103.25
  5. Step 5: Solve for x
    x = 1,152,875,529,814,103.25/42,390,003.60
  6. Step 6: Final answer
    x = 27,196,872.66

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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.