Home / 5,256,638,136.86-7,884,977,422.78-1,272,715,617.76

Finding the Fourth Proportional to 5,256,638,136.86, 7,884,977,422.78 and 1,272,715,617.76

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Solution

The fourth proportional to 5,256,638,136.86, 7,884,977,422.78 and 1,272,715,617.76 is: 1,909,078,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256,638,136.86 : 7,884,977,422.78 = 1,272,715,617.76 : x
  2. Step 2: Convert to fraction form
    5,256,638,136.86/7,884,977,422.78 = 1,272,715,617.76/x
  3. Step 3: Cross multiply
    5,256,638,136.86x = 7,884,977,422.78 × 1,272,715,617.76
  4. Step 4: Simplify right side
    5,256,638,136.86x = 10,035,333,911,638,915,072
  5. Step 5: Solve for x
    x = 10,035,333,911,638,915,072/5,256,638,136.86
  6. Step 6: Final answer
    x = 1,909,078,321.61

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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.