Home / 386,087,649.80-579,186,036.86-123,710,854.64

Finding the Fourth Proportional to 386,087,649.80, 579,186,036.86 and 123,710,854.64

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Solution

The fourth proportional to 386,087,649.80, 579,186,036.86 and 123,710,854.64 is: 185,583,764.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,087,649.80 : 579,186,036.86 = 123,710,854.64 : x
  2. Step 2: Convert to fraction form
    386,087,649.80/579,186,036.86 = 123,710,854.64/x
  3. Step 3: Cross multiply
    386,087,649.80x = 579,186,036.86 × 123,710,854.64
  4. Step 4: Simplify right side
    386,087,649.80x = 71,651,599,615,505,144
  5. Step 5: Solve for x
    x = 71,651,599,615,505,144/386,087,649.80
  6. Step 6: Final answer
    x = 185,583,764.86

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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.