Home / 7,978,193,232.60-11,967,289,848.90-7,549,639,210.20

Finding the Fourth Proportional to 7,978,193,232.60, 11,967,289,848.90 and 7,549,639,210.20

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Solution

The fourth proportional to 7,978,193,232.60, 11,967,289,848.90 and 7,549,639,210.20 is: 11,324,458,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,193,232.60 : 11,967,289,848.90 = 7,549,639,210.20 : x
  2. Step 2: Convert to fraction form
    7,978,193,232.60/11,967,289,848.90 = 7,549,639,210.20/x
  3. Step 3: Cross multiply
    7,978,193,232.60x = 11,967,289,848.90 × 7,549,639,210.20
  4. Step 4: Simplify right side
    7,978,193,232.60x = 90,348,720,683,083,874,304
  5. Step 5: Solve for x
    x = 90,348,720,683,083,874,304/7,978,193,232.60
  6. Step 6: Final answer
    x = 11,324,458,815.30

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Double scale
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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.