Home / 1,309,877,999.70-1,964,816,999.55-654,930,111.30

Finding the Fourth Proportional to 1,309,877,999.70, 1,964,816,999.55 and 654,930,111.30

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Solution

The fourth proportional to 1,309,877,999.70, 1,964,816,999.55 and 654,930,111.30 is: 982,395,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,877,999.70 : 1,964,816,999.55 = 654,930,111.30 : x
  2. Step 2: Convert to fraction form
    1,309,877,999.70/1,964,816,999.55 = 654,930,111.30/x
  3. Step 3: Cross multiply
    1,309,877,999.70x = 1,964,816,999.55 × 654,930,111.30
  4. Step 4: Simplify right side
    1,309,877,999.70x = 1,286,817,816,199,413,504
  5. Step 5: Solve for x
    x = 1,286,817,816,199,413,504/1,309,877,999.70
  6. Step 6: Final answer
    x = 982,395,166.95

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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.