Home / 28,420,854.69-42,614,963.17-11,128,809.45

Finding the Fourth Proportional to 28,420,854.69, 42,614,963.17 and 11,128,809.45

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Solution

The fourth proportional to 28,420,854.69, 42,614,963.17 and 11,128,809.45 is: 16,686,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,854.69 : 42,614,963.17 = 11,128,809.45 : x
  2. Step 2: Convert to fraction form
    28,420,854.69/42,614,963.17 = 11,128,809.45/x
  3. Step 3: Cross multiply
    28,420,854.69x = 42,614,963.17 × 11,128,809.45
  4. Step 4: Simplify right side
    28,420,854.69x = 474,253,804,809,875.88
  5. Step 5: Solve for x
    x = 474,253,804,809,875.88/28,420,854.69
  6. Step 6: Final answer
    x = 16,686,824.16

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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.