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Finding the Fourth Proportional to 76,271,918.40, 114,452,114.40 and 28,407,700.80

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Solution

The fourth proportional to 76,271,918.40, 114,452,114.40 and 28,407,700.80 is: 42,628,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,271,918.40 : 114,452,114.40 = 28,407,700.80 : x
  2. Step 2: Convert to fraction form
    76,271,918.40/114,452,114.40 = 28,407,700.80/x
  3. Step 3: Cross multiply
    76,271,918.40x = 114,452,114.40 × 28,407,700.80
  4. Step 4: Simplify right side
    76,271,918.40x = 3,251,321,421,802,572
  5. Step 5: Solve for x
    x = 3,251,321,421,802,572/76,271,918.40
  6. Step 6: Final answer
    x = 42,628,027.33

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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.