Home / 405,865,915.20-608,350,975.20-224,243,438.40

Finding the Fourth Proportional to 405,865,915.20, 608,350,975.20 and 224,243,438.40

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Solution

The fourth proportional to 405,865,915.20, 608,350,975.20 and 224,243,438.40 is: 336,117,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,865,915.20 : 608,350,975.20 = 224,243,438.40 : x
  2. Step 2: Convert to fraction form
    405,865,915.20/608,350,975.20 = 224,243,438.40/x
  3. Step 3: Cross multiply
    405,865,915.20x = 608,350,975.20 × 224,243,438.40
  4. Step 4: Simplify right side
    405,865,915.20x = 136,418,714,432,841,136
  5. Step 5: Solve for x
    x = 136,418,714,432,841,136/405,865,915.20
  6. Step 6: Final answer
    x = 336,117,691.39

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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.