Home / 12,939,319.80-19,429,974.90-7,270,615.80

Finding the Fourth Proportional to 12,939,319.80, 19,429,974.90 and 7,270,615.80

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Solution

The fourth proportional to 12,939,319.80, 19,429,974.90 and 7,270,615.80 is: 10,917,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,319.80 : 19,429,974.90 = 7,270,615.80 : x
  2. Step 2: Convert to fraction form
    12,939,319.80/19,429,974.90 = 7,270,615.80/x
  3. Step 3: Cross multiply
    12,939,319.80x = 19,429,974.90 × 7,270,615.80
  4. Step 4: Simplify right side
    12,939,319.80x = 141,267,882,501,543.41
  5. Step 5: Solve for x
    x = 141,267,882,501,543.41/12,939,319.80
  6. Step 6: Final answer
    x = 10,917,720.92

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1.5x scale

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.