Home / 139,153,923.92-192,097,795.15-80,405,225.00

Finding the Fourth Proportional to 139,153,923.92, 192,097,795.15 and 80,405,225.00

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Solution

The fourth proportional to 139,153,923.92, 192,097,795.15 and 80,405,225.00 is: 110,996,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,153,923.92 : 192,097,795.15 = 80,405,225.00 : x
  2. Step 2: Convert to fraction form
    139,153,923.92/192,097,795.15 = 80,405,225.00/x
  3. Step 3: Cross multiply
    139,153,923.92x = 192,097,795.15 × 80,405,225.00
  4. Step 4: Simplify right side
    139,153,923.92x = 15,445,666,439,677,146
  5. Step 5: Solve for x
    x = 15,445,666,439,677,146/139,153,923.92
  6. Step 6: Final answer
    x = 110,996,988.12

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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.