Home / 1,187,789,409.60-1,781,684,114.40-800,805,883.20

Finding the Fourth Proportional to 1,187,789,409.60, 1,781,684,114.40 and 800,805,883.20

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Solution

The fourth proportional to 1,187,789,409.60, 1,781,684,114.40 and 800,805,883.20 is: 1,201,208,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,789,409.60 : 1,781,684,114.40 = 800,805,883.20 : x
  2. Step 2: Convert to fraction form
    1,187,789,409.60/1,781,684,114.40 = 800,805,883.20/x
  3. Step 3: Cross multiply
    1,187,789,409.60x = 1,781,684,114.40 × 800,805,883.20
  4. Step 4: Simplify right side
    1,187,789,409.60x = 1,426,783,120,815,502,080
  5. Step 5: Solve for x
    x = 1,426,783,120,815,502,080/1,187,789,409.60
  6. Step 6: Final answer
    x = 1,201,208,824.80

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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.