Home / 43,688,328.40-65,556,112.20-19,430,999.20

Finding the Fourth Proportional to 43,688,328.40, 65,556,112.20 and 19,430,999.20

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Solution

The fourth proportional to 43,688,328.40, 65,556,112.20 and 19,430,999.20 is: 29,157,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,688,328.40 : 65,556,112.20 = 19,430,999.20 : x
  2. Step 2: Convert to fraction form
    43,688,328.40/65,556,112.20 = 19,430,999.20/x
  3. Step 3: Cross multiply
    43,688,328.40x = 65,556,112.20 × 19,430,999.20
  4. Step 4: Simplify right side
    43,688,328.40x = 1,273,820,763,713,310.25
  5. Step 5: Solve for x
    x = 1,273,820,763,713,310.25/43,688,328.40
  6. Step 6: Final answer
    x = 29,157,003.95

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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.