Home / 21,308,154.76-29,385,643.26-13,963,320.28

Finding the Fourth Proportional to 21,308,154.76, 29,385,643.26 and 13,963,320.28

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Solution

The fourth proportional to 21,308,154.76, 29,385,643.26 and 13,963,320.28 is: 19,256,531.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,154.76 : 29,385,643.26 = 13,963,320.28 : x
  2. Step 2: Convert to fraction form
    21,308,154.76/29,385,643.26 = 13,963,320.28/x
  3. Step 3: Cross multiply
    21,308,154.76x = 29,385,643.26 × 13,963,320.28
  4. Step 4: Simplify right side
    21,308,154.76x = 410,321,148,473,203.31
  5. Step 5: Solve for x
    x = 410,321,148,473,203.31/21,308,154.76
  6. Step 6: Final answer
    x = 19,256,531.27

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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.