Home / 8,686,963.90-13,032,001.05-3,638,784.70

Finding the Fourth Proportional to 8,686,963.90, 13,032,001.05 and 3,638,784.70

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Solution

The fourth proportional to 8,686,963.90, 13,032,001.05 and 3,638,784.70 is: 5,458,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686,963.90 : 13,032,001.05 = 3,638,784.70 : x
  2. Step 2: Convert to fraction form
    8,686,963.90/13,032,001.05 = 3,638,784.70/x
  3. Step 3: Cross multiply
    8,686,963.90x = 13,032,001.05 × 3,638,784.70
  4. Step 4: Simplify right side
    8,686,963.90x = 47,420,646,031,123.94
  5. Step 5: Solve for x
    x = 47,420,646,031,123.94/8,686,963.90
  6. Step 6: Final answer
    x = 5,458,828.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.