Home / 8,686,515.78-11,982,411.40-5,417,655.39

Finding the Fourth Proportional to 8,686,515.78, 11,982,411.40 and 5,417,655.39

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Solution

The fourth proportional to 8,686,515.78, 11,982,411.40 and 5,417,655.39 is: 7,473,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686,515.78 : 11,982,411.40 = 5,417,655.39 : x
  2. Step 2: Convert to fraction form
    8,686,515.78/11,982,411.40 = 5,417,655.39/x
  3. Step 3: Cross multiply
    8,686,515.78x = 11,982,411.40 × 5,417,655.39
  4. Step 4: Simplify right side
    8,686,515.78x = 64,916,575,706,407.45
  5. Step 5: Solve for x
    x = 64,916,575,706,407.45/8,686,515.78
  6. Step 6: Final answer
    x = 7,473,258.25

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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.