Home / 142,808,872.64-197,080,401.30-80,927,153.60

Finding the Fourth Proportional to 142,808,872.64, 197,080,401.30 and 80,927,153.60

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Solution

The fourth proportional to 142,808,872.64, 197,080,401.30 and 80,927,153.60 is: 111,681,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,808,872.64 : 197,080,401.30 = 80,927,153.60 : x
  2. Step 2: Convert to fraction form
    142,808,872.64/197,080,401.30 = 80,927,153.60/x
  3. Step 3: Cross multiply
    142,808,872.64x = 197,080,401.30 × 80,927,153.60
  4. Step 4: Simplify right side
    142,808,872.64x = 15,949,155,907,554,740
  5. Step 5: Solve for x
    x = 15,949,155,907,554,740/142,808,872.64
  6. Step 6: Final answer
    x = 111,681,827.70

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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.