Home / 19,708,985-27,000,855.85-18,972,127.20

Finding the Fourth Proportional to 19,708,985, 27,000,855.85 and 18,972,127.20

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Solution

The fourth proportional to 19,708,985, 27,000,855.85 and 18,972,127.20 is: 25,991,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708,985 : 27,000,855.85 = 18,972,127.20 : x
  2. Step 2: Convert to fraction form
    19,708,985/27,000,855.85 = 18,972,127.20/x
  3. Step 3: Cross multiply
    19,708,985x = 27,000,855.85 × 18,972,127.20
  4. Step 4: Simplify right side
    19,708,985x = 512,263,671,695,064.12
  5. Step 5: Solve for x
    x = 512,263,671,695,064.12/19,708,985
  6. Step 6: Final answer
    x = 25,991,377.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.