Home / 624,845,872.72-862,254,348.33-356,869,022.05

Finding the Fourth Proportional to 624,845,872.72, 862,254,348.33 and 356,869,022.05

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Solution

The fourth proportional to 624,845,872.72, 862,254,348.33 and 356,869,022.05 is: 492,460,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,845,872.72 : 862,254,348.33 = 356,869,022.05 : x
  2. Step 2: Convert to fraction form
    624,845,872.72/862,254,348.33 = 356,869,022.05/x
  3. Step 3: Cross multiply
    624,845,872.72x = 862,254,348.33 × 356,869,022.05
  4. Step 4: Simplify right side
    624,845,872.72x = 307,711,866,046,887,168
  5. Step 5: Solve for x
    x = 307,711,866,046,887,168/624,845,872.72
  6. Step 6: Final answer
    x = 492,460,428.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.