Home / 646,563,232.80-969,844,849.20-186,516,410.40

Finding the Fourth Proportional to 646,563,232.80, 969,844,849.20 and 186,516,410.40

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Solution

The fourth proportional to 646,563,232.80, 969,844,849.20 and 186,516,410.40 is: 279,774,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,563,232.80 : 969,844,849.20 = 186,516,410.40 : x
  2. Step 2: Convert to fraction form
    646,563,232.80/969,844,849.20 = 186,516,410.40/x
  3. Step 3: Cross multiply
    646,563,232.80x = 969,844,849.20 × 186,516,410.40
  4. Step 4: Simplify right side
    646,563,232.80x = 180,891,979,917,713,312
  5. Step 5: Solve for x
    x = 180,891,979,917,713,312/646,563,232.80
  6. Step 6: Final answer
    x = 279,774,615.60

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Similar ratio
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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.