Home / 2,819,547.74-3,890,979.81-1,530,388.40

Finding the Fourth Proportional to 2,819,547.74, 3,890,979.81 and 1,530,388.40

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Solution

The fourth proportional to 2,819,547.74, 3,890,979.81 and 1,530,388.40 is: 2,111,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,547.74 : 3,890,979.81 = 1,530,388.40 : x
  2. Step 2: Convert to fraction form
    2,819,547.74/3,890,979.81 = 1,530,388.40/x
  3. Step 3: Cross multiply
    2,819,547.74x = 3,890,979.81 × 1,530,388.40
  4. Step 4: Simplify right side
    2,819,547.74x = 5,954,710,346,403.31
  5. Step 5: Solve for x
    x = 5,954,710,346,403.31/2,819,547.74
  6. Step 6: Final answer
    x = 2,111,938.12

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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.