Home / 1,152,314,978.58-1,728,475,124.94-664,218,306.54

Finding the Fourth Proportional to 1,152,314,978.58, 1,728,475,124.94 and 664,218,306.54

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Solution

The fourth proportional to 1,152,314,978.58, 1,728,475,124.94 and 664,218,306.54 is: 996,328,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,314,978.58 : 1,728,475,124.94 = 664,218,306.54 : x
  2. Step 2: Convert to fraction form
    1,152,314,978.58/1,728,475,124.94 = 664,218,306.54/x
  3. Step 3: Cross multiply
    1,152,314,978.58x = 1,728,475,124.94 × 664,218,306.54
  4. Step 4: Simplify right side
    1,152,314,978.58x = 1,148,084,820,384,161,664
  5. Step 5: Solve for x
    x = 1,148,084,820,384,161,664/1,152,314,978.58
  6. Step 6: Final answer
    x = 996,328,991.40

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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.