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Finding the Fourth Proportional to 543,281,012.45, 814,921,518.68 and 543,281,012.45

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Solution

The fourth proportional to 543,281,012.45, 814,921,518.68 and 543,281,012.45 is: 814,921,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,281,012.45 : 814,921,518.68 = 543,281,012.45 : x
  2. Step 2: Convert to fraction form
    543,281,012.45/814,921,518.68 = 543,281,012.45/x
  3. Step 3: Cross multiply
    543,281,012.45x = 814,921,518.68 × 543,281,012.45
  4. Step 4: Simplify right side
    543,281,012.45x = 442,731,387,735,761,984
  5. Step 5: Solve for x
    x = 442,731,387,735,761,984/543,281,012.45
  6. Step 6: Final answer
    x = 814,921,518.68

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1.5x scale

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.