Home / 12,020,539.50-17,987,708.70-10,406,858.40

Finding the Fourth Proportional to 12,020,539.50, 17,987,708.70 and 10,406,858.40

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Solution

The fourth proportional to 12,020,539.50, 17,987,708.70 and 10,406,858.40 is: 15,572,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020,539.50 : 17,987,708.70 = 10,406,858.40 : x
  2. Step 2: Convert to fraction form
    12,020,539.50/17,987,708.70 = 10,406,858.40/x
  3. Step 3: Cross multiply
    12,020,539.50x = 17,987,708.70 × 10,406,858.40
  4. Step 4: Simplify right side
    12,020,539.50x = 187,195,537,381,348.09
  5. Step 5: Solve for x
    x = 187,195,537,381,348.09/12,020,539.50
  6. Step 6: Final answer
    x = 15,572,973.03

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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.