Home / 19,988,225.64-29,994,678-7,855,556.40

Finding the Fourth Proportional to 19,988,225.64, 29,994,678 and 7,855,556.40

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Solution

The fourth proportional to 19,988,225.64, 29,994,678 and 7,855,556.40 is: 11,788,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988,225.64 : 29,994,678 = 7,855,556.40 : x
  2. Step 2: Convert to fraction form
    19,988,225.64/29,994,678 = 7,855,556.40/x
  3. Step 3: Cross multiply
    19,988,225.64x = 29,994,678 × 7,855,556.40
  4. Step 4: Simplify right side
    19,988,225.64x = 235,624,884,728,839.22
  5. Step 5: Solve for x
    x = 235,624,884,728,839.22/19,988,225.64
  6. Step 6: Final answer
    x = 11,788,184.15

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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.