Home / 13,390,079.48-18,478,321.58-7,278,507.98

Finding the Fourth Proportional to 13,390,079.48, 18,478,321.58 and 7,278,507.98

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Solution

The fourth proportional to 13,390,079.48, 18,478,321.58 and 7,278,507.98 is: 10,044,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,079.48 : 18,478,321.58 = 7,278,507.98 : x
  2. Step 2: Convert to fraction form
    13,390,079.48/18,478,321.58 = 7,278,507.98/x
  3. Step 3: Cross multiply
    13,390,079.48x = 18,478,321.58 × 7,278,507.98
  4. Step 4: Simplify right side
    13,390,079.48x = 134,494,611,002,840.86
  5. Step 5: Solve for x
    x = 134,494,611,002,840.86/13,390,079.48
  6. Step 6: Final answer
    x = 10,044,347.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.