Home / 538,549,441.20-743,166,190.98-312,470,911.44

Finding the Fourth Proportional to 538,549,441.20, 743,166,190.98 and 312,470,911.44

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Solution

The fourth proportional to 538,549,441.20, 743,166,190.98 and 312,470,911.44 is: 431,191,269.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,549,441.20 : 743,166,190.98 = 312,470,911.44 : x
  2. Step 2: Convert to fraction form
    538,549,441.20/743,166,190.98 = 312,470,911.44/x
  3. Step 3: Cross multiply
    538,549,441.20x = 743,166,190.98 × 312,470,911.44
  4. Step 4: Simplify right side
    538,549,441.20x = 232,217,817,046,913,696
  5. Step 5: Solve for x
    x = 232,217,817,046,913,696/538,549,441.20
  6. Step 6: Final answer
    x = 431,191,269.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.