Home / 131,471,869.60-196,829,890.80-80,453,533.60

Finding the Fourth Proportional to 131,471,869.60, 196,829,890.80 and 80,453,533.60

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Solution

The fourth proportional to 131,471,869.60, 196,829,890.80 and 80,453,533.60 is: 120,449,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,869.60 : 196,829,890.80 = 80,453,533.60 : x
  2. Step 2: Convert to fraction form
    131,471,869.60/196,829,890.80 = 80,453,533.60/x
  3. Step 3: Cross multiply
    131,471,869.60x = 196,829,890.80 × 80,453,533.60
  4. Step 4: Simplify right side
    131,471,869.60x = 15,835,660,232,962,130
  5. Step 5: Solve for x
    x = 15,835,660,232,962,130/131,471,869.60
  6. Step 6: Final answer
    x = 120,449,038.12

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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.