Home / 281,235,444.84-388,108,018.08-155,789,562.24

Finding the Fourth Proportional to 281,235,444.84, 388,108,018.08 and 155,789,562.24

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Solution

The fourth proportional to 281,235,444.84, 388,108,018.08 and 155,789,562.24 is: 214,991,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,444.84 : 388,108,018.08 = 155,789,562.24 : x
  2. Step 2: Convert to fraction form
    281,235,444.84/388,108,018.08 = 155,789,562.24/x
  3. Step 3: Cross multiply
    281,235,444.84x = 388,108,018.08 × 155,789,562.24
  4. Step 4: Simplify right side
    281,235,444.84x = 60,463,178,238,517,208
  5. Step 5: Solve for x
    x = 60,463,178,238,517,208/281,235,444.84
  6. Step 6: Final answer
    x = 214,991,315.45

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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.