Home / 15,338,388.42-21,174,646.39-9,539,038.51

Finding the Fourth Proportional to 15,338,388.42, 21,174,646.39 and 9,539,038.51

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Solution

The fourth proportional to 15,338,388.42, 21,174,646.39 and 9,539,038.51 is: 13,168,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,388.42 : 21,174,646.39 = 9,539,038.51 : x
  2. Step 2: Convert to fraction form
    15,338,388.42/21,174,646.39 = 9,539,038.51/x
  3. Step 3: Cross multiply
    15,338,388.42x = 21,174,646.39 × 9,539,038.51
  4. Step 4: Simplify right side
    15,338,388.42x = 201,985,767,273,058.28
  5. Step 5: Solve for x
    x = 201,985,767,273,058.28/15,338,388.42
  6. Step 6: Final answer
    x = 13,168,643.39

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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.