Home / 1,010,919,231.60-1,516,525,813.80-428,652,351.60

Finding the Fourth Proportional to 1,010,919,231.60, 1,516,525,813.80 and 428,652,351.60

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Solution

The fourth proportional to 1,010,919,231.60, 1,516,525,813.80 and 428,652,351.60 is: 643,040,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,919,231.60 : 1,516,525,813.80 = 428,652,351.60 : x
  2. Step 2: Convert to fraction form
    1,010,919,231.60/1,516,525,813.80 = 428,652,351.60/x
  3. Step 3: Cross multiply
    1,010,919,231.60x = 1,516,525,813.80 × 428,652,351.60
  4. Step 4: Simplify right side
    1,010,919,231.60x = 650,062,356,347,473,792
  5. Step 5: Solve for x
    x = 650,062,356,347,473,792/1,010,919,231.60
  6. Step 6: Final answer
    x = 643,040,844.44

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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.