Home / 287,362,240.30-431,043,360.45-126,119,104.30

Finding the Fourth Proportional to 287,362,240.30, 431,043,360.45 and 126,119,104.30

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Solution

The fourth proportional to 287,362,240.30, 431,043,360.45 and 126,119,104.30 is: 189,178,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,362,240.30 : 431,043,360.45 = 126,119,104.30 : x
  2. Step 2: Convert to fraction form
    287,362,240.30/431,043,360.45 = 126,119,104.30/x
  3. Step 3: Cross multiply
    287,362,240.30x = 431,043,360.45 × 126,119,104.30
  4. Step 4: Simplify right side
    287,362,240.30x = 54,362,802,534,416,040
  5. Step 5: Solve for x
    x = 54,362,802,534,416,040/287,362,240.30
  6. Step 6: Final answer
    x = 189,178,656.45

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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.