Home / 988,733,321.64-1,482,265,878.28-813,864,985.60

Finding the Fourth Proportional to 988,733,321.64, 1,482,265,878.28 and 813,864,985.60

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Solution

The fourth proportional to 988,733,321.64, 1,482,265,878.28 and 813,864,985.60 is: 1,220,110,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,733,321.64 : 1,482,265,878.28 = 813,864,985.60 : x
  2. Step 2: Convert to fraction form
    988,733,321.64/1,482,265,878.28 = 813,864,985.60/x
  3. Step 3: Cross multiply
    988,733,321.64x = 1,482,265,878.28 × 813,864,985.60
  4. Step 4: Simplify right side
    988,733,321.64x = 1,206,364,297,681,723,648
  5. Step 5: Solve for x
    x = 1,206,364,297,681,723,648/988,733,321.64
  6. Step 6: Final answer
    x = 1,220,110,894.70

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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.