Home / 13,891,556.85-19,170,348.45-7,779,985.35

Finding the Fourth Proportional to 13,891,556.85, 19,170,348.45 and 7,779,985.35

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Solution

The fourth proportional to 13,891,556.85, 19,170,348.45 and 7,779,985.35 is: 10,736,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891,556.85 : 19,170,348.45 = 7,779,985.35 : x
  2. Step 2: Convert to fraction form
    13,891,556.85/19,170,348.45 = 7,779,985.35/x
  3. Step 3: Cross multiply
    13,891,556.85x = 19,170,348.45 × 7,779,985.35
  4. Step 4: Simplify right side
    13,891,556.85x = 149,145,029,960,643.53
  5. Step 5: Solve for x
    x = 149,145,029,960,643.53/13,891,556.85
  6. Step 6: Final answer
    x = 10,736,379.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.