Home / 128,889,741.60-193,166,650.80-52,149,952.80

Finding the Fourth Proportional to 128,889,741.60, 193,166,650.80 and 52,149,952.80

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Solution

The fourth proportional to 128,889,741.60, 193,166,650.80 and 52,149,952.80 is: 78,156,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,889,741.60 : 193,166,650.80 = 52,149,952.80 : x
  2. Step 2: Convert to fraction form
    128,889,741.60/193,166,650.80 = 52,149,952.80/x
  3. Step 3: Cross multiply
    128,889,741.60x = 193,166,650.80 × 52,149,952.80
  4. Step 4: Simplify right side
    128,889,741.60x = 10,073,631,721,754,082
  5. Step 5: Solve for x
    x = 10,073,631,721,754,082/128,889,741.60
  6. Step 6: Final answer
    x = 78,156,970.42

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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.