Home / 12,780,828,036.70-19,171,242,055.05-9,681,464,124.70

Finding the Fourth Proportional to 12,780,828,036.70, 19,171,242,055.05 and 9,681,464,124.70

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Solution

The fourth proportional to 12,780,828,036.70, 19,171,242,055.05 and 9,681,464,124.70 is: 14,522,196,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,828,036.70 : 19,171,242,055.05 = 9,681,464,124.70 : x
  2. Step 2: Convert to fraction form
    12,780,828,036.70/19,171,242,055.05 = 9,681,464,124.70/x
  3. Step 3: Cross multiply
    12,780,828,036.70x = 19,171,242,055.05 × 9,681,464,124.70
  4. Step 4: Simplify right side
    12,780,828,036.70x = 185,605,692,181,906,489,344
  5. Step 5: Solve for x
    x = 185,605,692,181,906,489,344/12,780,828,036.70
  6. Step 6: Final answer
    x = 14,522,196,187.05

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Double scale
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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.