Home / 13,887,487,959.05-19,165,260,202.56-7,783,953,327.78

Finding the Fourth Proportional to 13,887,487,959.05, 19,165,260,202.56 and 7,783,953,327.78

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Solution

The fourth proportional to 13,887,487,959.05, 19,165,260,202.56 and 7,783,953,327.78 is: 10,742,150,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887,487,959.05 : 19,165,260,202.56 = 7,783,953,327.78 : x
  2. Step 2: Convert to fraction form
    13,887,487,959.05/19,165,260,202.56 = 7,783,953,327.78/x
  3. Step 3: Cross multiply
    13,887,487,959.05x = 19,165,260,202.56 × 7,783,953,327.78
  4. Step 4: Simplify right side
    13,887,487,959.05x = 149,181,490,931,486,523,392
  5. Step 5: Solve for x
    x = 149,181,490,931,486,523,392/13,887,487,959.05
  6. Step 6: Final answer
    x = 10,742,150,875.05

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Double scale
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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.