Home / 145,060,759.30-200,181,970.06-78,980,499.63

Finding the Fourth Proportional to 145,060,759.30, 200,181,970.06 and 78,980,499.63

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Solution

The fourth proportional to 145,060,759.30, 200,181,970.06 and 78,980,499.63 is: 108,992,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,060,759.30 : 200,181,970.06 = 78,980,499.63 : x
  2. Step 2: Convert to fraction form
    145,060,759.30/200,181,970.06 = 78,980,499.63/x
  3. Step 3: Cross multiply
    145,060,759.30x = 200,181,970.06 × 78,980,499.63
  4. Step 4: Simplify right side
    145,060,759.30x = 15,810,472,012,256,500
  5. Step 5: Solve for x
    x = 15,810,472,012,256,500/145,060,759.30
  6. Step 6: Final answer
    x = 108,992,067.11

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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.