Home / 442,670,663.20-664,005,994.80-155,456,327.20

Finding the Fourth Proportional to 442,670,663.20, 664,005,994.80 and 155,456,327.20

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Solution

The fourth proportional to 442,670,663.20, 664,005,994.80 and 155,456,327.20 is: 233,184,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,670,663.20 : 664,005,994.80 = 155,456,327.20 : x
  2. Step 2: Convert to fraction form
    442,670,663.20/664,005,994.80 = 155,456,327.20/x
  3. Step 3: Cross multiply
    442,670,663.20x = 664,005,994.80 × 155,456,327.20
  4. Step 4: Simplify right side
    442,670,663.20x = 103,223,933,190,390,288
  5. Step 5: Solve for x
    x = 103,223,933,190,390,288/442,670,663.20
  6. Step 6: Final answer
    x = 233,184,490.80

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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.