Home / 1,261,189,296.90-1,740,407,509.80-696,662,028.72

Finding the Fourth Proportional to 1,261,189,296.90, 1,740,407,509.80 and 696,662,028.72

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Solution

The fourth proportional to 1,261,189,296.90, 1,740,407,509.80 and 696,662,028.72 is: 961,374,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,189,296.90 : 1,740,407,509.80 = 696,662,028.72 : x
  2. Step 2: Convert to fraction form
    1,261,189,296.90/1,740,407,509.80 = 696,662,028.72/x
  3. Step 3: Cross multiply
    1,261,189,296.90x = 1,740,407,509.80 × 696,662,028.72
  4. Step 4: Simplify right side
    1,261,189,296.90x = 1,212,475,826,576,791,296
  5. Step 5: Solve for x
    x = 1,212,475,826,576,791,296/1,261,189,296.90
  6. Step 6: Final answer
    x = 961,374,973.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.