Home / 291,073,380.80-436,610,071.20-193,713,389.60

Finding the Fourth Proportional to 291,073,380.80, 436,610,071.20 and 193,713,389.60

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Solution

The fourth proportional to 291,073,380.80, 436,610,071.20 and 193,713,389.60 is: 290,570,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,073,380.80 : 436,610,071.20 = 193,713,389.60 : x
  2. Step 2: Convert to fraction form
    291,073,380.80/436,610,071.20 = 193,713,389.60/x
  3. Step 3: Cross multiply
    291,073,380.80x = 436,610,071.20 × 193,713,389.60
  4. Step 4: Simplify right side
    291,073,380.80x = 84,577,216,825,649,328
  5. Step 5: Solve for x
    x = 84,577,216,825,649,328/291,073,380.80
  6. Step 6: Final answer
    x = 290,570,084.40

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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.