Home / 1,120,915,602.20-1,681,373,403.30-538,509,410.30

Finding the Fourth Proportional to 1,120,915,602.20, 1,681,373,403.30 and 538,509,410.30

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Solution

The fourth proportional to 1,120,915,602.20, 1,681,373,403.30 and 538,509,410.30 is: 807,764,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,915,602.20 : 1,681,373,403.30 = 538,509,410.30 : x
  2. Step 2: Convert to fraction form
    1,120,915,602.20/1,681,373,403.30 = 538,509,410.30/x
  3. Step 3: Cross multiply
    1,120,915,602.20x = 1,681,373,403.30 × 538,509,410.30
  4. Step 4: Simplify right side
    1,120,915,602.20x = 905,435,399,905,186,944
  5. Step 5: Solve for x
    x = 905,435,399,905,186,944/1,120,915,602.20
  6. Step 6: Final answer
    x = 807,764,115.45

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Half scale
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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.