Home / 287,817,985.45-431,757,220.74-93,744,513.06

Finding the Fourth Proportional to 287,817,985.45, 431,757,220.74 and 93,744,513.06

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Solution

The fourth proportional to 287,817,985.45, 431,757,220.74 and 93,744,513.06 is: 140,626,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,817,985.45 : 431,757,220.74 = 93,744,513.06 : x
  2. Step 2: Convert to fraction form
    287,817,985.45/431,757,220.74 = 93,744,513.06/x
  3. Step 3: Cross multiply
    287,817,985.45x = 431,757,220.74 × 93,744,513.06
  4. Step 4: Simplify right side
    287,817,985.45x = 40,474,870,418,410,232
  5. Step 5: Solve for x
    x = 40,474,870,418,410,232/287,817,985.45
  6. Step 6: Final answer
    x = 140,626,619.82

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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.