Home / 1,272,302,231.80-1,907,333,603.70-862,028,030.20

Finding the Fourth Proportional to 1,272,302,231.80, 1,907,333,603.70 and 862,028,030.20

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Solution

The fourth proportional to 1,272,302,231.80, 1,907,333,603.70 and 862,028,030.20 is: 1,292,283,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,302,231.80 : 1,907,333,603.70 = 862,028,030.20 : x
  2. Step 2: Convert to fraction form
    1,272,302,231.80/1,907,333,603.70 = 862,028,030.20/x
  3. Step 3: Cross multiply
    1,272,302,231.80x = 1,907,333,603.70 × 862,028,030.20
  4. Step 4: Simplify right side
    1,272,302,231.80x = 1,644,175,029,331,778,560
  5. Step 5: Solve for x
    x = 1,644,175,029,331,778,560/1,272,302,231.80
  6. Step 6: Final answer
    x = 1,292,283,380.66

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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.