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Finding the Fourth Proportional to 55,335,978.30, 83,003,967.45 and 16,997,430.90

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Solution

The fourth proportional to 55,335,978.30, 83,003,967.45 and 16,997,430.90 is: 25,496,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,335,978.30 : 83,003,967.45 = 16,997,430.90 : x
  2. Step 2: Convert to fraction form
    55,335,978.30/83,003,967.45 = 16,997,430.90/x
  3. Step 3: Cross multiply
    55,335,978.30x = 83,003,967.45 × 16,997,430.90
  4. Step 4: Simplify right side
    55,335,978.30x = 1,410,854,201,157,224.25
  5. Step 5: Solve for x
    x = 1,410,854,201,157,224.25/55,335,978.30
  6. Step 6: Final answer
    x = 25,496,146.35

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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.