Home / 12,130,205.40-16,739,764.38-6,623,618.49

Finding the Fourth Proportional to 12,130,205.40, 16,739,764.38 and 6,623,618.49

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Solution

The fourth proportional to 12,130,205.40, 16,739,764.38 and 6,623,618.49 is: 9,140,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,205.40 : 16,739,764.38 = 6,623,618.49 : x
  2. Step 2: Convert to fraction form
    12,130,205.40/16,739,764.38 = 6,623,618.49/x
  3. Step 3: Cross multiply
    12,130,205.40x = 16,739,764.38 × 6,623,618.49
  4. Step 4: Simplify right side
    12,130,205.40x = 110,877,812,865,611.39
  5. Step 5: Solve for x
    x = 110,877,812,865,611.39/12,130,205.40
  6. Step 6: Final answer
    x = 9,140,637.71

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1.5x scale

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.