Home / 42,286,146.40-63,422,998.80-11,997,071.20

Finding the Fourth Proportional to 42,286,146.40, 63,422,998.80 and 11,997,071.20

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Solution

The fourth proportional to 42,286,146.40, 63,422,998.80 and 11,997,071.20 is: 17,993,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,286,146.40 : 63,422,998.80 = 11,997,071.20 : x
  2. Step 2: Convert to fraction form
    42,286,146.40/63,422,998.80 = 11,997,071.20/x
  3. Step 3: Cross multiply
    42,286,146.40x = 63,422,998.80 × 11,997,071.20
  4. Step 4: Simplify right side
    42,286,146.40x = 760,890,232,321,114.50
  5. Step 5: Solve for x
    x = 760,890,232,321,114.50/42,286,146.40
  6. Step 6: Final answer
    x = 17,993,841.89

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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.