Home / 15,648,540.79-21,570,042.93-12,335,435.68

Finding the Fourth Proportional to 15,648,540.79, 21,570,042.93 and 12,335,435.68

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Solution

The fourth proportional to 15,648,540.79, 21,570,042.93 and 12,335,435.68 is: 17,003,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648,540.79 : 21,570,042.93 = 12,335,435.68 : x
  2. Step 2: Convert to fraction form
    15,648,540.79/21,570,042.93 = 12,335,435.68/x
  3. Step 3: Cross multiply
    15,648,540.79x = 21,570,042.93 × 12,335,435.68
  4. Step 4: Simplify right side
    15,648,540.79x = 266,075,877,118,114.59
  5. Step 5: Solve for x
    x = 266,075,877,118,114.59/15,648,540.79
  6. Step 6: Final answer
    x = 17,003,238.88

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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.