Home / 287,896,518.72-431,497,820.21-132,235,525.26

Finding the Fourth Proportional to 287,896,518.72, 431,497,820.21 and 132,235,525.26

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Solution

The fourth proportional to 287,896,518.72, 431,497,820.21 and 132,235,525.26 is: 198,193,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,896,518.72 : 431,497,820.21 = 132,235,525.26 : x
  2. Step 2: Convert to fraction form
    287,896,518.72/431,497,820.21 = 132,235,525.26/x
  3. Step 3: Cross multiply
    287,896,518.72x = 431,497,820.21 × 132,235,525.26
  4. Step 4: Simplify right side
    287,896,518.72x = 57,059,340,903,353,216
  5. Step 5: Solve for x
    x = 57,059,340,903,353,216/287,896,518.72
  6. Step 6: Final answer
    x = 198,193,924.53

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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.