Home / 12,431,664.36-18,650,381.28-3,911,779.32

Finding the Fourth Proportional to 12,431,664.36, 18,650,381.28 and 3,911,779.32

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Solution

The fourth proportional to 12,431,664.36, 18,650,381.28 and 3,911,779.32 is: 5,868,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,664.36 : 18,650,381.28 = 3,911,779.32 : x
  2. Step 2: Convert to fraction form
    12,431,664.36/18,650,381.28 = 3,911,779.32/x
  3. Step 3: Cross multiply
    12,431,664.36x = 18,650,381.28 × 3,911,779.32
  4. Step 4: Simplify right side
    12,431,664.36x = 72,956,175,801,219.12
  5. Step 5: Solve for x
    x = 72,956,175,801,219.12/12,431,664.36
  6. Step 6: Final answer
    x = 5,868,576.70

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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.