Home / 1,115,534,529.11-1,671,362,623.89-782,835,929.39

Finding the Fourth Proportional to 1,115,534,529.11, 1,671,362,623.89 and 782,835,929.39

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Solution

The fourth proportional to 1,115,534,529.11, 1,671,362,623.89 and 782,835,929.39 is: 1,172,893,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,534,529.11 : 1,671,362,623.89 = 782,835,929.39 : x
  2. Step 2: Convert to fraction form
    1,115,534,529.11/1,671,362,623.89 = 782,835,929.39/x
  3. Step 3: Cross multiply
    1,115,534,529.11x = 1,671,362,623.89 × 782,835,929.39
  4. Step 4: Simplify right side
    1,115,534,529.11x = 1,308,402,713,012,280,320
  5. Step 5: Solve for x
    x = 1,308,402,713,012,280,320/1,115,534,529.11
  6. Step 6: Final answer
    x = 1,172,893,065.05

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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.