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Finding the Fourth Proportional to 619,648,222.90, 855,129,881.64 and 337,406,136.70

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Solution

The fourth proportional to 619,648,222.90, 855,129,881.64 and 337,406,136.70 is: 465,628,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,648,222.90 : 855,129,881.64 = 337,406,136.70 : x
  2. Step 2: Convert to fraction form
    619,648,222.90/855,129,881.64 = 337,406,136.70/x
  3. Step 3: Cross multiply
    619,648,222.90x = 855,129,881.64 × 337,406,136.70
  4. Step 4: Simplify right side
    619,648,222.90x = 288,526,069,740,880,640
  5. Step 5: Solve for x
    x = 288,526,069,740,880,640/619,648,222.90
  6. Step 6: Final answer
    x = 465,628,818.22

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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.