Home / 30,655,863.40-45,967,206.30-12,706,781.80

Finding the Fourth Proportional to 30,655,863.40, 45,967,206.30 and 12,706,781.80

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Solution

The fourth proportional to 30,655,863.40, 45,967,206.30 and 12,706,781.80 is: 19,053,296.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655,863.40 : 45,967,206.30 = 12,706,781.80 : x
  2. Step 2: Convert to fraction form
    30,655,863.40/45,967,206.30 = 12,706,781.80/x
  3. Step 3: Cross multiply
    30,655,863.40x = 45,967,206.30 × 12,706,781.80
  4. Step 4: Simplify right side
    30,655,863.40x = 584,095,260,409,685.38
  5. Step 5: Solve for x
    x = 584,095,260,409,685.38/30,655,863.40
  6. Step 6: Final answer
    x = 19,053,296.68

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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.