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Finding the Fourth Proportional to 978,037,504.80, 1,467,056,257.20 and 881,291,623.20

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Solution

The fourth proportional to 978,037,504.80, 1,467,056,257.20 and 881,291,623.20 is: 1,321,937,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,037,504.80 : 1,467,056,257.20 = 881,291,623.20 : x
  2. Step 2: Convert to fraction form
    978,037,504.80/1,467,056,257.20 = 881,291,623.20/x
  3. Step 3: Cross multiply
    978,037,504.80x = 1,467,056,257.20 × 881,291,623.20
  4. Step 4: Simplify right side
    978,037,504.80x = 1,292,904,390,233,504,768
  5. Step 5: Solve for x
    x = 1,292,904,390,233,504,768/978,037,504.80
  6. Step 6: Final answer
    x = 1,321,937,434.80

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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.