Home / 1,188,459,081.24-1,640,009,510.88-659,789,017.08

Finding the Fourth Proportional to 1,188,459,081.24, 1,640,009,510.88 and 659,789,017.08

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Solution

The fourth proportional to 1,188,459,081.24, 1,640,009,510.88 and 659,789,017.08 is: 910,473,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,459,081.24 : 1,640,009,510.88 = 659,789,017.08 : x
  2. Step 2: Convert to fraction form
    1,188,459,081.24/1,640,009,510.88 = 659,789,017.08/x
  3. Step 3: Cross multiply
    1,188,459,081.24x = 1,640,009,510.88 × 659,789,017.08
  4. Step 4: Simplify right side
    1,188,459,081.24x = 1,082,060,263,185,366,912
  5. Step 5: Solve for x
    x = 1,082,060,263,185,366,912/1,188,459,081.24
  6. Step 6: Final answer
    x = 910,473,301.32

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Double scale
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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.