Home / 12,621,142.64-18,931,712.80-3,036,521.18

Finding the Fourth Proportional to 12,621,142.64, 18,931,712.80 and 3,036,521.18

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Solution

The fourth proportional to 12,621,142.64, 18,931,712.80 and 3,036,521.18 is: 4,554,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,142.64 : 18,931,712.80 = 3,036,521.18 : x
  2. Step 2: Convert to fraction form
    12,621,142.64/18,931,712.80 = 3,036,521.18/x
  3. Step 3: Cross multiply
    12,621,142.64x = 18,931,712.80 × 3,036,521.18
  4. Step 4: Simplify right side
    12,621,142.64x = 57,486,546,890,877.11
  5. Step 5: Solve for x
    x = 57,486,546,890,877.11/12,621,142.64
  6. Step 6: Final answer
    x = 4,554,781.49

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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.