Home / 28,018,919.80-42,028,379.70-9,843,637.60

Finding the Fourth Proportional to 28,018,919.80, 42,028,379.70 and 9,843,637.60

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Solution

The fourth proportional to 28,018,919.80, 42,028,379.70 and 9,843,637.60 is: 14,765,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,919.80 : 42,028,379.70 = 9,843,637.60 : x
  2. Step 2: Convert to fraction form
    28,018,919.80/42,028,379.70 = 9,843,637.60/x
  3. Step 3: Cross multiply
    28,018,919.80x = 42,028,379.70 × 9,843,637.60
  4. Step 4: Simplify right side
    28,018,919.80x = 413,712,138,681,996.75
  5. Step 5: Solve for x
    x = 413,712,138,681,996.75/28,018,919.80
  6. Step 6: Final answer
    x = 14,765,456.40

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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.