Home / 14,258,421.40-21,385,007.70-8,857,406.20

Finding the Fourth Proportional to 14,258,421.40, 21,385,007.70 and 8,857,406.20

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Solution

The fourth proportional to 14,258,421.40, 21,385,007.70 and 8,857,406.20 is: 13,284,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258,421.40 : 21,385,007.70 = 8,857,406.20 : x
  2. Step 2: Convert to fraction form
    14,258,421.40/21,385,007.70 = 8,857,406.20/x
  3. Step 3: Cross multiply
    14,258,421.40x = 21,385,007.70 × 8,857,406.20
  4. Step 4: Simplify right side
    14,258,421.40x = 189,415,699,789,027.72
  5. Step 5: Solve for x
    x = 189,415,699,789,027.72/14,258,421.40
  6. Step 6: Final answer
    x = 13,284,479.01

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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.