Home / 1,681,616,105.64-2,320,585,247.66-928,913,081.72

Finding the Fourth Proportional to 1,681,616,105.64, 2,320,585,247.66 and 928,913,081.72

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Solution

The fourth proportional to 1,681,616,105.64, 2,320,585,247.66 and 928,913,081.72 is: 1,281,875,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,616,105.64 : 2,320,585,247.66 = 928,913,081.72 : x
  2. Step 2: Convert to fraction form
    1,681,616,105.64/2,320,585,247.66 = 928,913,081.72/x
  3. Step 3: Cross multiply
    1,681,616,105.64x = 2,320,585,247.66 × 928,913,081.72
  4. Step 4: Simplify right side
    1,681,616,105.64x = 2,155,621,993,781,572,864
  5. Step 5: Solve for x
    x = 2,155,621,993,781,572,864/1,681,616,105.64
  6. Step 6: Final answer
    x = 1,281,875,207.16

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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.