Home / 18,927,406.48-28,379,739.60-7,399,143.35

Finding the Fourth Proportional to 18,927,406.48, 28,379,739.60 and 7,399,143.35

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Solution

The fourth proportional to 18,927,406.48, 28,379,739.60 and 7,399,143.35 is: 11,094,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,406.48 : 28,379,739.60 = 7,399,143.35 : x
  2. Step 2: Convert to fraction form
    18,927,406.48/28,379,739.60 = 7,399,143.35/x
  3. Step 3: Cross multiply
    18,927,406.48x = 28,379,739.60 × 7,399,143.35
  4. Step 4: Simplify right side
    18,927,406.48x = 209,985,761,357,177.22
  5. Step 5: Solve for x
    x = 209,985,761,357,177.22/18,927,406.48
  6. Step 6: Final answer
    x = 11,094,270.18

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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.