Home / 2,069,664,983.60-3,104,928,784.20-689,908,132.40

Finding the Fourth Proportional to 2,069,664,983.60, 3,104,928,784.20 and 689,908,132.40

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Solution

The fourth proportional to 2,069,664,983.60, 3,104,928,784.20 and 689,908,132.40 is: 1,035,005,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069,664,983.60 : 3,104,928,784.20 = 689,908,132.40 : x
  2. Step 2: Convert to fraction form
    2,069,664,983.60/3,104,928,784.20 = 689,908,132.40/x
  3. Step 3: Cross multiply
    2,069,664,983.60x = 3,104,928,784.20 × 689,908,132.40
  4. Step 4: Simplify right side
    2,069,664,983.60x = 2,142,115,618,742,424,320
  5. Step 5: Solve for x
    x = 2,142,115,618,742,424,320/2,069,664,983.60
  6. Step 6: Final answer
    x = 1,035,005,972.33

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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.