Home / 426,470,544.75-639,705,817.13-103,354,416.75

Finding the Fourth Proportional to 426,470,544.75, 639,705,817.13 and 103,354,416.75

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Solution

The fourth proportional to 426,470,544.75, 639,705,817.13 and 103,354,416.75 is: 155,031,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,470,544.75 : 639,705,817.13 = 103,354,416.75 : x
  2. Step 2: Convert to fraction form
    426,470,544.75/639,705,817.13 = 103,354,416.75/x
  3. Step 3: Cross multiply
    426,470,544.75x = 639,705,817.13 × 103,354,416.75
  4. Step 4: Simplify right side
    426,470,544.75x = 66,116,421,620,536,536
  5. Step 5: Solve for x
    x = 66,116,421,620,536,536/426,470,544.75
  6. Step 6: Final answer
    x = 155,031,625.13

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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.