Home / 1,140,722,436.36-1,708,136,777.57-787,287,308.59

Finding the Fourth Proportional to 1,140,722,436.36, 1,708,136,777.57 and 787,287,308.59

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Solution

The fourth proportional to 1,140,722,436.36, 1,708,136,777.57 and 787,287,308.59 is: 1,178,897,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,722,436.36 : 1,708,136,777.57 = 787,287,308.59 : x
  2. Step 2: Convert to fraction form
    1,140,722,436.36/1,708,136,777.57 = 787,287,308.59/x
  3. Step 3: Cross multiply
    1,140,722,436.36x = 1,708,136,777.57 × 787,287,308.59
  4. Step 4: Simplify right side
    1,140,722,436.36x = 1,344,794,406,308,140,032
  5. Step 5: Solve for x
    x = 1,344,794,406,308,140,032/1,140,722,436.36
  6. Step 6: Final answer
    x = 1,178,897,129.96

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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.