Home / 5,256,638,148.88-7,884,977,440.80-1,272,715,629.76

Finding the Fourth Proportional to 5,256,638,148.88, 7,884,977,440.80 and 1,272,715,629.76

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Solution

The fourth proportional to 5,256,638,148.88, 7,884,977,440.80 and 1,272,715,629.76 is: 1,909,078,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256,638,148.88 : 7,884,977,440.80 = 1,272,715,629.76 : x
  2. Step 2: Convert to fraction form
    5,256,638,148.88/7,884,977,440.80 = 1,272,715,629.76/x
  3. Step 3: Cross multiply
    5,256,638,148.88x = 7,884,977,440.80 × 1,272,715,629.76
  4. Step 4: Simplify right side
    5,256,638,148.88x = 10,035,334,029,211,164,672
  5. Step 5: Solve for x
    x = 10,035,334,029,211,164,672/5,256,638,148.88
  6. Step 6: Final answer
    x = 1,909,078,339.61

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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.