Home / 438,585,124.54-657,412,463.31-205,219,219.18

Finding the Fourth Proportional to 438,585,124.54, 657,412,463.31 and 205,219,219.18

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Solution

The fourth proportional to 438,585,124.54, 657,412,463.31 and 205,219,219.18 is: 307,611,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,585,124.54 : 657,412,463.31 = 205,219,219.18 : x
  2. Step 2: Convert to fraction form
    438,585,124.54/657,412,463.31 = 205,219,219.18/x
  3. Step 3: Cross multiply
    438,585,124.54x = 657,412,463.31 × 205,219,219.18
  4. Step 4: Simplify right side
    438,585,124.54x = 134,913,672,399,678,592
  5. Step 5: Solve for x
    x = 134,913,672,399,678,592/438,585,124.54
  6. Step 6: Final answer
    x = 307,611,145.14

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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.