Home / 15,338,390.42-21,174,649.14-9,539,040.50

Finding the Fourth Proportional to 15,338,390.42, 21,174,649.14 and 9,539,040.50

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Solution

The fourth proportional to 15,338,390.42, 21,174,649.14 and 9,539,040.50 is: 13,168,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,390.42 : 21,174,649.14 = 9,539,040.50 : x
  2. Step 2: Convert to fraction form
    15,338,390.42/21,174,649.14 = 9,539,040.50/x
  3. Step 3: Cross multiply
    15,338,390.42x = 21,174,649.14 × 9,539,040.50
  4. Step 4: Simplify right side
    15,338,390.42x = 201,985,835,719,750.19
  5. Step 5: Solve for x
    x = 201,985,835,719,750.19/15,338,390.42
  6. Step 6: Final answer
    x = 13,168,646.13

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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.