Home / 1,320,367,078.40-1,980,550,617.60-708,147,046.40

Finding the Fourth Proportional to 1,320,367,078.40, 1,980,550,617.60 and 708,147,046.40

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Solution

The fourth proportional to 1,320,367,078.40, 1,980,550,617.60 and 708,147,046.40 is: 1,062,220,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,367,078.40 : 1,980,550,617.60 = 708,147,046.40 : x
  2. Step 2: Convert to fraction form
    1,320,367,078.40/1,980,550,617.60 = 708,147,046.40/x
  3. Step 3: Cross multiply
    1,320,367,078.40x = 1,980,550,617.60 × 708,147,046.40
  4. Step 4: Simplify right side
    1,320,367,078.40x = 1,402,521,070,099,135,744
  5. Step 5: Solve for x
    x = 1,402,521,070,099,135,744/1,320,367,078.40
  6. Step 6: Final answer
    x = 1,062,220,569.60

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1.5x scale

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.