Home / 807,145,862,963.50-1,210,719,959,688.40-329,615,161,084.78

Finding the Fourth Proportional to 807,145,862,963.50, 1,210,719,959,688.40 and 329,615,161,084.78

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Solution

The fourth proportional to 807,145,862,963.50, 1,210,719,959,688.40 and 329,615,161,084.78 is: 494,423,217,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,145,862,963.50 : 1,210,719,959,688.40 = 329,615,161,084.78 : x
  2. Step 2: Convert to fraction form
    807,145,862,963.50/1,210,719,959,688.40 = 329,615,161,084.78/x
  3. Step 3: Cross multiply
    807,145,862,963.50x = 1,210,719,959,688.40 × 329,615,161,084.78
  4. Step 4: Simplify right side
    807,145,862,963.50x = 399,071,654,541,250,315,419,648
  5. Step 5: Solve for x
    x = 399,071,654,541,250,315,419,648/807,145,862,963.50
  6. Step 6: Final answer
    x = 494,423,217,478.97

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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.