Home / 853,119,019.80-1,279,678,529.70-754,483,570.20

Finding the Fourth Proportional to 853,119,019.80, 1,279,678,529.70 and 754,483,570.20

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Solution

The fourth proportional to 853,119,019.80, 1,279,678,529.70 and 754,483,570.20 is: 1,131,725,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,119,019.80 : 1,279,678,529.70 = 754,483,570.20 : x
  2. Step 2: Convert to fraction form
    853,119,019.80/1,279,678,529.70 = 754,483,570.20/x
  3. Step 3: Cross multiply
    853,119,019.80x = 1,279,678,529.70 × 754,483,570.20
  4. Step 4: Simplify right side
    853,119,019.80x = 965,496,425,796,342,784
  5. Step 5: Solve for x
    x = 965,496,425,796,342,784/853,119,019.80
  6. Step 6: Final answer
    x = 1,131,725,355.30

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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.