Home / 20,020,199,381.80-30,030,299,072.70-15,385,466,991.40

Finding the Fourth Proportional to 20,020,199,381.80, 30,030,299,072.70 and 15,385,466,991.40

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Solution

The fourth proportional to 20,020,199,381.80, 30,030,299,072.70 and 15,385,466,991.40 is: 23,078,200,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,199,381.80 : 30,030,299,072.70 = 15,385,466,991.40 : x
  2. Step 2: Convert to fraction form
    20,020,199,381.80/30,030,299,072.70 = 15,385,466,991.40/x
  3. Step 3: Cross multiply
    20,020,199,381.80x = 30,030,299,072.70 × 15,385,466,991.40
  4. Step 4: Simplify right side
    20,020,199,381.80x = 462,030,175,124,895,891,456
  5. Step 5: Solve for x
    x = 462,030,175,124,895,891,456/20,020,199,381.80
  6. Step 6: Final answer
    x = 23,078,200,487.10

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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.