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Finding the Fourth Proportional to 553,673,475.18, 830,592,794.81 and 203,892,648.57

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Solution

The fourth proportional to 553,673,475.18, 830,592,794.81 and 203,892,648.57 is: 305,869,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,673,475.18 : 830,592,794.81 = 203,892,648.57 : x
  2. Step 2: Convert to fraction form
    553,673,475.18/830,592,794.81 = 203,892,648.57/x
  3. Step 3: Cross multiply
    553,673,475.18x = 830,592,794.81 × 203,892,648.57
  4. Step 4: Simplify right side
    553,673,475.18x = 169,351,764,815,949,984
  5. Step 5: Solve for x
    x = 169,351,764,815,949,984/553,673,475.18
  6. Step 6: Final answer
    x = 305,869,384.05

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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.