Home / 494,887,642.40-742,142,506.80-149,726,554.40

Finding the Fourth Proportional to 494,887,642.40, 742,142,506.80 and 149,726,554.40

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Solution

The fourth proportional to 494,887,642.40, 742,142,506.80 and 149,726,554.40 is: 224,532,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,887,642.40 : 742,142,506.80 = 149,726,554.40 : x
  2. Step 2: Convert to fraction form
    494,887,642.40/742,142,506.80 = 149,726,554.40/x
  3. Step 3: Cross multiply
    494,887,642.40x = 742,142,506.80 × 149,726,554.40
  4. Step 4: Simplify right side
    494,887,642.40x = 111,118,440,416,942,560
  5. Step 5: Solve for x
    x = 111,118,440,416,942,560/494,887,642.40
  6. Step 6: Final answer
    x = 224,532,663.37

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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.