Home / 930,362,634.90-1,283,909,046.66-512,689,867.38

Finding the Fourth Proportional to 930,362,634.90, 1,283,909,046.66 and 512,689,867.38

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Solution

The fourth proportional to 930,362,634.90, 1,283,909,046.66 and 512,689,867.38 is: 707,516,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,362,634.90 : 1,283,909,046.66 = 512,689,867.38 : x
  2. Step 2: Convert to fraction form
    930,362,634.90/1,283,909,046.66 = 512,689,867.38/x
  3. Step 3: Cross multiply
    930,362,634.90x = 1,283,909,046.66 × 512,689,867.38
  4. Step 4: Simplify right side
    930,362,634.90x = 658,247,158,860,097,664
  5. Step 5: Solve for x
    x = 658,247,158,860,097,664/930,362,634.90
  6. Step 6: Final answer
    x = 707,516,761.92

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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.