Home / 386,010,038.20-579,099,038.10-127,181,212.60

Finding the Fourth Proportional to 386,010,038.20, 579,099,038.10 and 127,181,212.60

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Solution

The fourth proportional to 386,010,038.20, 579,099,038.10 and 127,181,212.60 is: 190,799,488.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,010,038.20 : 579,099,038.10 = 127,181,212.60 : x
  2. Step 2: Convert to fraction form
    386,010,038.20/579,099,038.10 = 127,181,212.60/x
  3. Step 3: Cross multiply
    386,010,038.20x = 579,099,038.10 × 127,181,212.60
  4. Step 4: Simplify right side
    386,010,038.20x = 73,650,517,881,051,600
  5. Step 5: Solve for x
    x = 73,650,517,881,051,600/386,010,038.20
  6. Step 6: Final answer
    x = 190,799,488.59

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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.