Home / 131,004,048.60-196,506,072.90-128,453,131.80

Finding the Fourth Proportional to 131,004,048.60, 196,506,072.90 and 128,453,131.80

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Solution

The fourth proportional to 131,004,048.60, 196,506,072.90 and 128,453,131.80 is: 192,679,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,048.60 : 196,506,072.90 = 128,453,131.80 : x
  2. Step 2: Convert to fraction form
    131,004,048.60/196,506,072.90 = 128,453,131.80/x
  3. Step 3: Cross multiply
    131,004,048.60x = 196,506,072.90 × 128,453,131.80
  4. Step 4: Simplify right side
    131,004,048.60x = 25,241,820,481,724,108
  5. Step 5: Solve for x
    x = 25,241,820,481,724,108/131,004,048.60
  6. Step 6: Final answer
    x = 192,679,697.70

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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.