Home / 1,185,120,183.12-1,635,465,283.87-708,810,543.73

Finding the Fourth Proportional to 1,185,120,183.12, 1,635,465,283.87 and 708,810,543.73

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Solution

The fourth proportional to 1,185,120,183.12, 1,635,465,283.87 and 708,810,543.73 is: 978,158,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,120,183.12 : 1,635,465,283.87 = 708,810,543.73 : x
  2. Step 2: Convert to fraction form
    1,185,120,183.12/1,635,465,283.87 = 708,810,543.73/x
  3. Step 3: Cross multiply
    1,185,120,183.12x = 1,635,465,283.87 × 708,810,543.73
  4. Step 4: Simplify right side
    1,185,120,183.12x = 1,159,235,037,107,393,792
  5. Step 5: Solve for x
    x = 1,159,235,037,107,393,792/1,185,120,183.12
  6. Step 6: Final answer
    x = 978,158,210.13

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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.