Home / 193,529,219.20-290,293,828.80-145,156,278.40

Finding the Fourth Proportional to 193,529,219.20, 290,293,828.80 and 145,156,278.40

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Solution

The fourth proportional to 193,529,219.20, 290,293,828.80 and 145,156,278.40 is: 217,734,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,529,219.20 : 290,293,828.80 = 145,156,278.40 : x
  2. Step 2: Convert to fraction form
    193,529,219.20/290,293,828.80 = 145,156,278.40/x
  3. Step 3: Cross multiply
    193,529,219.20x = 290,293,828.80 × 145,156,278.40
  4. Step 4: Simplify right side
    193,529,219.20x = 42,137,971,831,094,744
  5. Step 5: Solve for x
    x = 42,137,971,831,094,744/193,529,219.20
  6. Step 6: Final answer
    x = 217,734,417.60

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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.