Home / 809,859,518.48-1,216,727,260.08-519,295,921.04

Finding the Fourth Proportional to 809,859,518.48, 1,216,727,260.08 and 519,295,921.04

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Solution

The fourth proportional to 809,859,518.48, 1,216,727,260.08 and 519,295,921.04 is: 780,186,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859,518.48 : 1,216,727,260.08 = 519,295,921.04 : x
  2. Step 2: Convert to fraction form
    809,859,518.48/1,216,727,260.08 = 519,295,921.04/x
  3. Step 3: Cross multiply
    809,859,518.48x = 1,216,727,260.08 × 519,295,921.04
  4. Step 4: Simplify right side
    809,859,518.48x = 631,841,503,177,719,168
  5. Step 5: Solve for x
    x = 631,841,503,177,719,168/809,859,518.48
  6. Step 6: Final answer
    x = 780,186,549.35

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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.