Home / 15,774,985.12-21,769,479.48-8,531,641.12

Finding the Fourth Proportional to 15,774,985.12, 21,769,479.48 and 8,531,641.12

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Solution

The fourth proportional to 15,774,985.12, 21,769,479.48 and 8,531,641.12 is: 11,773,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774,985.12 : 21,769,479.48 = 8,531,641.12 : x
  2. Step 2: Convert to fraction form
    15,774,985.12/21,769,479.48 = 8,531,641.12/x
  3. Step 3: Cross multiply
    15,774,985.12x = 21,769,479.48 × 8,531,641.12
  4. Step 4: Simplify right side
    15,774,985.12x = 185,729,386,292,564.22
  5. Step 5: Solve for x
    x = 185,729,386,292,564.22/15,774,985.12
  6. Step 6: Final answer
    x = 11,773,664.75

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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.