Home / 103,020,010.40-154,530,015.60-31,207,095.20

Finding the Fourth Proportional to 103,020,010.40, 154,530,015.60 and 31,207,095.20

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Solution

The fourth proportional to 103,020,010.40, 154,530,015.60 and 31,207,095.20 is: 46,810,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,020,010.40 : 154,530,015.60 = 31,207,095.20 : x
  2. Step 2: Convert to fraction form
    103,020,010.40/154,530,015.60 = 31,207,095.20/x
  3. Step 3: Cross multiply
    103,020,010.40x = 154,530,015.60 × 31,207,095.20
  4. Step 4: Simplify right side
    103,020,010.40x = 4,822,432,908,086,685
  5. Step 5: Solve for x
    x = 4,822,432,908,086,685/103,020,010.40
  6. Step 6: Final answer
    x = 46,810,642.80

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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.