Home / 853,119,005.80-1,279,678,508.70-754,483,556.20

Finding the Fourth Proportional to 853,119,005.80, 1,279,678,508.70 and 754,483,556.20

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Solution

The fourth proportional to 853,119,005.80, 1,279,678,508.70 and 754,483,556.20 is: 1,131,725,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,119,005.80 : 1,279,678,508.70 = 754,483,556.20 : x
  2. Step 2: Convert to fraction form
    853,119,005.80/1,279,678,508.70 = 754,483,556.20/x
  3. Step 3: Cross multiply
    853,119,005.80x = 1,279,678,508.70 × 754,483,556.20
  4. Step 4: Simplify right side
    853,119,005.80x = 965,496,392,036,688,768
  5. Step 5: Solve for x
    x = 965,496,392,036,688,768/853,119,005.80
  6. Step 6: Final answer
    x = 1,131,725,334.30

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1.5x scale

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.