Home / 641,508,140,065.36-961,663,998,522.64-216,739,347,390.94

Finding the Fourth Proportional to 641,508,140,065.36, 961,663,998,522.64 and 216,739,347,390.94

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Solution

The fourth proportional to 641,508,140,065.36, 961,663,998,522.64 and 216,739,347,390.94 is: 324,906,909,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,508,140,065.36 : 961,663,998,522.64 = 216,739,347,390.94 : x
  2. Step 2: Convert to fraction form
    641,508,140,065.36/961,663,998,522.64 = 216,739,347,390.94/x
  3. Step 3: Cross multiply
    641,508,140,065.36x = 961,663,998,522.64 × 216,739,347,390.94
  4. Step 4: Simplify right side
    641,508,140,065.36x = 208,430,427,449,158,870,761,472
  5. Step 5: Solve for x
    x = 208,430,427,449,158,870,761,472/641,508,140,065.36
  6. Step 6: Final answer
    x = 324,906,909,876.35

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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.