Home / 7,972,276,040.70-11,958,414,061.05-4,872,912,128.70

Finding the Fourth Proportional to 7,972,276,040.70, 11,958,414,061.05 and 4,872,912,128.70

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Solution

The fourth proportional to 7,972,276,040.70, 11,958,414,061.05 and 4,872,912,128.70 is: 7,309,368,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972,276,040.70 : 11,958,414,061.05 = 4,872,912,128.70 : x
  2. Step 2: Convert to fraction form
    7,972,276,040.70/11,958,414,061.05 = 4,872,912,128.70/x
  3. Step 3: Cross multiply
    7,972,276,040.70x = 11,958,414,061.05 × 4,872,912,128.70
  4. Step 4: Simplify right side
    7,972,276,040.70x = 58,272,300,918,107,160,576
  5. Step 5: Solve for x
    x = 58,272,300,918,107,160,576/7,972,276,040.70
  6. Step 6: Final answer
    x = 7,309,368,193.05

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Double scale
Find fourth proportional to 7,972,276,041.70, 11,958,414,062.55 and 4,872,912,129.70
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.