Home / 2,191,681.51-3,024,258.56-1,211,488.16

Finding the Fourth Proportional to 2,191,681.51, 3,024,258.56 and 1,211,488.16

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Solution

The fourth proportional to 2,191,681.51, 3,024,258.56 and 1,211,488.16 is: 1,671,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,681.51 : 3,024,258.56 = 1,211,488.16 : x
  2. Step 2: Convert to fraction form
    2,191,681.51/3,024,258.56 = 1,211,488.16/x
  3. Step 3: Cross multiply
    2,191,681.51x = 3,024,258.56 × 1,211,488.16
  4. Step 4: Simplify right side
    2,191,681.51x = 3,663,853,438,218.65
  5. Step 5: Solve for x
    x = 3,663,853,438,218.65/2,191,681.51
  6. Step 6: Final answer
    x = 1,671,708.88

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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.