Home / 1,115,534,532.11-1,671,362,628.39-782,835,932.39

Finding the Fourth Proportional to 1,115,534,532.11, 1,671,362,628.39 and 782,835,932.39

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Solution

The fourth proportional to 1,115,534,532.11, 1,671,362,628.39 and 782,835,932.39 is: 1,172,893,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,534,532.11 : 1,671,362,628.39 = 782,835,932.39 : x
  2. Step 2: Convert to fraction form
    1,115,534,532.11/1,671,362,628.39 = 782,835,932.39/x
  3. Step 3: Cross multiply
    1,115,534,532.11x = 1,671,362,628.39 × 782,835,932.39
  4. Step 4: Simplify right side
    1,115,534,532.11x = 1,308,402,721,557,486,848
  5. Step 5: Solve for x
    x = 1,308,402,721,557,486,848/1,115,534,532.11
  6. Step 6: Final answer
    x = 1,172,893,069.55

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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.