Home / 281,235,468.34-388,108,050.51-155,789,585.74

Finding the Fourth Proportional to 281,235,468.34, 388,108,050.51 and 155,789,585.74

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Solution

The fourth proportional to 281,235,468.34, 388,108,050.51 and 155,789,585.74 is: 214,991,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,468.34 : 388,108,050.51 = 155,789,585.74 : x
  2. Step 2: Convert to fraction form
    281,235,468.34/388,108,050.51 = 155,789,585.74/x
  3. Step 3: Cross multiply
    281,235,468.34x = 388,108,050.51 × 155,789,585.74
  4. Step 4: Simplify right side
    281,235,468.34x = 60,463,192,411,311,896
  5. Step 5: Solve for x
    x = 60,463,192,411,311,896/281,235,468.34
  6. Step 6: Final answer
    x = 214,991,347.88

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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.