Home / 20,020,199,356.80-30,030,299,035.20-15,385,466,966.40

Finding the Fourth Proportional to 20,020,199,356.80, 30,030,299,035.20 and 15,385,466,966.40

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Solution

The fourth proportional to 20,020,199,356.80, 30,030,299,035.20 and 15,385,466,966.40 is: 23,078,200,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,199,356.80 : 30,030,299,035.20 = 15,385,466,966.40 : x
  2. Step 2: Convert to fraction form
    20,020,199,356.80/30,030,299,035.20 = 15,385,466,966.40/x
  3. Step 3: Cross multiply
    20,020,199,356.80x = 30,030,299,035.20 × 15,385,466,966.40
  4. Step 4: Simplify right side
    20,020,199,356.80x = 462,030,173,797,183,389,696
  5. Step 5: Solve for x
    x = 462,030,173,797,183,389,696/20,020,199,356.80
  6. Step 6: Final answer
    x = 23,078,200,449.60

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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.