Home / 19,985,972.40-29,992,955.40-12,814,945.20

Finding the Fourth Proportional to 19,985,972.40, 29,992,955.40 and 12,814,945.20

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Solution

The fourth proportional to 19,985,972.40, 29,992,955.40 and 12,814,945.20 is: 19,231,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985,972.40 : 29,992,955.40 = 12,814,945.20 : x
  2. Step 2: Convert to fraction form
    19,985,972.40/29,992,955.40 = 12,814,945.20/x
  3. Step 3: Cross multiply
    19,985,972.40x = 29,992,955.40 × 12,814,945.20
  4. Step 4: Simplify right side
    19,985,972.40x = 384,358,079,837,044.06
  5. Step 5: Solve for x
    x = 384,358,079,837,044.06/19,985,972.40
  6. Step 6: Final answer
    x = 19,231,392.51

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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.