Home / 13,928,081,989.60-20,864,913,205.20-8,390,891,922.40

Finding the Fourth Proportional to 13,928,081,989.60, 20,864,913,205.20 and 8,390,891,922.40

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Solution

The fourth proportional to 13,928,081,989.60, 20,864,913,205.20 and 8,390,891,922.40 is: 12,569,945,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928,081,989.60 : 20,864,913,205.20 = 8,390,891,922.40 : x
  2. Step 2: Convert to fraction form
    13,928,081,989.60/20,864,913,205.20 = 8,390,891,922.40/x
  3. Step 3: Cross multiply
    13,928,081,989.60x = 20,864,913,205.20 × 8,390,891,922.40
  4. Step 4: Simplify right side
    13,928,081,989.60x = 175,075,231,675,089,780,736
  5. Step 5: Solve for x
    x = 175,075,231,675,089,780,736/13,928,081,989.60
  6. Step 6: Final answer
    x = 12,569,945,510.50

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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.