Home / 80,136,188.56-120,173,641.10-43,725,117.36

Finding the Fourth Proportional to 80,136,188.56, 120,173,641.10 and 43,725,117.36

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Solution

The fourth proportional to 80,136,188.56, 120,173,641.10 and 43,725,117.36 is: 65,570,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,136,188.56 : 120,173,641.10 = 43,725,117.36 : x
  2. Step 2: Convert to fraction form
    80,136,188.56/120,173,641.10 = 43,725,117.36/x
  3. Step 3: Cross multiply
    80,136,188.56x = 120,173,641.10 × 43,725,117.36
  4. Step 4: Simplify right side
    80,136,188.56x = 5,254,606,561,072,014
  5. Step 5: Solve for x
    x = 5,254,606,561,072,014/80,136,188.56
  6. Step 6: Final answer
    x = 65,570,956.84

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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.