Home / 1,325,447,469.76-1,988,458,197.40-507,559,799.92

Finding the Fourth Proportional to 1,325,447,469.76, 1,988,458,197.40 and 507,559,799.92

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Solution

The fourth proportional to 1,325,447,469.76, 1,988,458,197.40 and 507,559,799.92 is: 761,449,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,447,469.76 : 1,988,458,197.40 = 507,559,799.92 : x
  2. Step 2: Convert to fraction form
    1,325,447,469.76/1,988,458,197.40 = 507,559,799.92/x
  3. Step 3: Cross multiply
    1,325,447,469.76x = 1,988,458,197.40 × 507,559,799.92
  4. Step 4: Simplify right side
    1,325,447,469.76x = 1,009,261,444,821,627,904
  5. Step 5: Solve for x
    x = 1,009,261,444,821,627,904/1,325,447,469.76
  6. Step 6: Final answer
    x = 761,449,599.36

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Half scale
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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.