Home / 494,921,802.60-742,807,856.70-218,997,635.40

Finding the Fourth Proportional to 494,921,802.60, 742,807,856.70 and 218,997,635.40

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Solution

The fourth proportional to 494,921,802.60, 742,807,856.70 and 218,997,635.40 is: 328,684,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,921,802.60 : 742,807,856.70 = 218,997,635.40 : x
  2. Step 2: Convert to fraction form
    494,921,802.60/742,807,856.70 = 218,997,635.40/x
  3. Step 3: Cross multiply
    494,921,802.60x = 742,807,856.70 × 218,997,635.40
  4. Step 4: Simplify right side
    494,921,802.60x = 162,673,164,173,842,048
  5. Step 5: Solve for x
    x = 162,673,164,173,842,048/494,921,802.60
  6. Step 6: Final answer
    x = 328,684,578.69

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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.