Home / 15,648,543.88-21,570,047.20-12,335,438.78

Finding the Fourth Proportional to 15,648,543.88, 21,570,047.20 and 12,335,438.78

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Solution

The fourth proportional to 15,648,543.88, 21,570,047.20 and 12,335,438.78 is: 17,003,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648,543.88 : 21,570,047.20 = 12,335,438.78 : x
  2. Step 2: Convert to fraction form
    15,648,543.88/21,570,047.20 = 12,335,438.78/x
  3. Step 3: Cross multiply
    15,648,543.88x = 21,570,047.20 × 12,335,438.78
  4. Step 4: Simplify right side
    15,648,543.88x = 266,075,996,717,310.41
  5. Step 5: Solve for x
    x = 266,075,996,717,310.41/15,648,543.88
  6. Step 6: Final answer
    x = 17,003,243.16

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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.