Home / 103,020,006.90-154,530,010.35-31,207,091.70

Finding the Fourth Proportional to 103,020,006.90, 154,530,010.35 and 31,207,091.70

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Solution

The fourth proportional to 103,020,006.90, 154,530,010.35 and 31,207,091.70 is: 46,810,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,020,006.90 : 154,530,010.35 = 31,207,091.70 : x
  2. Step 2: Convert to fraction form
    103,020,006.90/154,530,010.35 = 31,207,091.70/x
  3. Step 3: Cross multiply
    103,020,006.90x = 154,530,010.35 × 31,207,091.70
  4. Step 4: Simplify right side
    103,020,006.90x = 4,822,432,203,394,399
  5. Step 5: Solve for x
    x = 4,822,432,203,394,399/103,020,006.90
  6. Step 6: Final answer
    x = 46,810,637.55

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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.