Home / 217,281,278.12-300,637,730.86-189,461,998.22

Finding the Fourth Proportional to 217,281,278.12, 300,637,730.86 and 189,461,998.22

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Solution

The fourth proportional to 217,281,278.12, 300,637,730.86 and 189,461,998.22 is: 262,146,033.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,281,278.12 : 300,637,730.86 = 189,461,998.22 : x
  2. Step 2: Convert to fraction form
    217,281,278.12/300,637,730.86 = 189,461,998.22/x
  3. Step 3: Cross multiply
    217,281,278.12x = 300,637,730.86 × 189,461,998.22
  4. Step 4: Simplify right side
    217,281,278.12x = 56,959,425,227,085,320
  5. Step 5: Solve for x
    x = 56,959,425,227,085,320/217,281,278.12
  6. Step 6: Final answer
    x = 262,146,033.57

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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.