Home / 787,878,840.80-1,181,818,261.20-242,787,461.60

Finding the Fourth Proportional to 787,878,840.80, 1,181,818,261.20 and 242,787,461.60

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Solution

The fourth proportional to 787,878,840.80, 1,181,818,261.20 and 242,787,461.60 is: 364,181,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,878,840.80 : 1,181,818,261.20 = 242,787,461.60 : x
  2. Step 2: Convert to fraction form
    787,878,840.80/1,181,818,261.20 = 242,787,461.60/x
  3. Step 3: Cross multiply
    787,878,840.80x = 1,181,818,261.20 × 242,787,461.60
  4. Step 4: Simplify right side
    787,878,840.80x = 286,930,655,709,273,760
  5. Step 5: Solve for x
    x = 286,930,655,709,273,760/787,878,840.80
  6. Step 6: Final answer
    x = 364,181,192.40

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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.