Home / 520,345,943.32-780,564,793.40-146,857,156.24

Finding the Fourth Proportional to 520,345,943.32, 780,564,793.40 and 146,857,156.24

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Solution

The fourth proportional to 520,345,943.32, 780,564,793.40 and 146,857,156.24 is: 220,298,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,345,943.32 : 780,564,793.40 = 146,857,156.24 : x
  2. Step 2: Convert to fraction form
    520,345,943.32/780,564,793.40 = 146,857,156.24/x
  3. Step 3: Cross multiply
    520,345,943.32x = 780,564,793.40 × 146,857,156.24
  4. Step 4: Simplify right side
    520,345,943.32x = 114,631,525,819,787,120
  5. Step 5: Solve for x
    x = 114,631,525,819,787,120/520,345,943.32
  6. Step 6: Final answer
    x = 220,298,682.62

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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.