Home / 287,462,264.52-431,021,014.79-131,821,095.66

Finding the Fourth Proportional to 287,462,264.52, 431,021,014.79 and 131,821,095.66

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Solution

The fourth proportional to 287,462,264.52, 431,021,014.79 and 131,821,095.66 is: 197,652,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,462,264.52 : 431,021,014.79 = 131,821,095.66 : x
  2. Step 2: Convert to fraction form
    287,462,264.52/431,021,014.79 = 131,821,095.66/x
  3. Step 3: Cross multiply
    287,462,264.52x = 431,021,014.79 × 131,821,095.66
  4. Step 4: Simplify right side
    287,462,264.52x = 56,817,662,421,443,760
  5. Step 5: Solve for x
    x = 56,817,662,421,443,760/287,462,264.52
  6. Step 6: Final answer
    x = 197,652,594.56

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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.