Home / 1,087,485,764.70-1,631,228,647.05-674,237,243.10

Finding the Fourth Proportional to 1,087,485,764.70, 1,631,228,647.05 and 674,237,243.10

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Solution

The fourth proportional to 1,087,485,764.70, 1,631,228,647.05 and 674,237,243.10 is: 1,011,355,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,485,764.70 : 1,631,228,647.05 = 674,237,243.10 : x
  2. Step 2: Convert to fraction form
    1,087,485,764.70/1,631,228,647.05 = 674,237,243.10/x
  3. Step 3: Cross multiply
    1,087,485,764.70x = 1,631,228,647.05 × 674,237,243.10
  4. Step 4: Simplify right side
    1,087,485,764.70x = 1,099,835,105,852,734,976
  5. Step 5: Solve for x
    x = 1,099,835,105,852,734,976/1,087,485,764.70
  6. Step 6: Final answer
    x = 1,011,355,864.65

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Double scale
Find fourth proportional to 1,087,485,765.70, 1,631,228,648.55 and 674,237,244.10
Similar ratio
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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.