Home / 12,845,479,647.78-17,725,324,158.90-7,130,005,005.42

Finding the Fourth Proportional to 12,845,479,647.78, 17,725,324,158.90 and 7,130,005,005.42

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Solution

The fourth proportional to 12,845,479,647.78, 17,725,324,158.90 and 7,130,005,005.42 is: 9,838,608,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845,479,647.78 : 17,725,324,158.90 = 7,130,005,005.42 : x
  2. Step 2: Convert to fraction form
    12,845,479,647.78/17,725,324,158.90 = 7,130,005,005.42/x
  3. Step 3: Cross multiply
    12,845,479,647.78x = 17,725,324,158.90 × 7,130,005,005.42
  4. Step 4: Simplify right side
    12,845,479,647.78x = 126,381,649,975,649,058,816
  5. Step 5: Solve for x
    x = 126,381,649,975,649,058,816/12,845,479,647.78
  6. Step 6: Final answer
    x = 9,838,608,867.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.