Home / 12,340,729.80-18,511,094.70-10,455,827.40

Finding the Fourth Proportional to 12,340,729.80, 18,511,094.70 and 10,455,827.40

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Solution

The fourth proportional to 12,340,729.80, 18,511,094.70 and 10,455,827.40 is: 15,683,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340,729.80 : 18,511,094.70 = 10,455,827.40 : x
  2. Step 2: Convert to fraction form
    12,340,729.80/18,511,094.70 = 10,455,827.40/x
  3. Step 3: Cross multiply
    12,340,729.80x = 18,511,094.70 × 10,455,827.40
  4. Step 4: Simplify right side
    12,340,729.80x = 193,548,811,168,254.78
  5. Step 5: Solve for x
    x = 193,548,811,168,254.78/12,340,729.80
  6. Step 6: Final answer
    x = 15,683,741.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.