Home / 103,020,006.40-154,530,009.60-31,207,091.20

Finding the Fourth Proportional to 103,020,006.40, 154,530,009.60 and 31,207,091.20

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Solution

The fourth proportional to 103,020,006.40, 154,530,009.60 and 31,207,091.20 is: 46,810,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,020,006.40 : 154,530,009.60 = 31,207,091.20 : x
  2. Step 2: Convert to fraction form
    103,020,006.40/154,530,009.60 = 31,207,091.20/x
  3. Step 3: Cross multiply
    103,020,006.40x = 154,530,009.60 × 31,207,091.20
  4. Step 4: Simplify right side
    103,020,006.40x = 4,822,432,102,724,075
  5. Step 5: Solve for x
    x = 4,822,432,102,724,075/103,020,006.40
  6. Step 6: Final answer
    x = 46,810,636.80

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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.