Home / 1,439,746,931.20-2,159,620,396.80-949,970,905.60

Finding the Fourth Proportional to 1,439,746,931.20, 2,159,620,396.80 and 949,970,905.60

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Solution

The fourth proportional to 1,439,746,931.20, 2,159,620,396.80 and 949,970,905.60 is: 1,424,956,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,746,931.20 : 2,159,620,396.80 = 949,970,905.60 : x
  2. Step 2: Convert to fraction form
    1,439,746,931.20/2,159,620,396.80 = 949,970,905.60/x
  3. Step 3: Cross multiply
    1,439,746,931.20x = 2,159,620,396.80 × 949,970,905.60
  4. Step 4: Simplify right side
    1,439,746,931.20x = 2,051,576,544,100,327,680
  5. Step 5: Solve for x
    x = 2,051,576,544,100,327,680/1,439,746,931.20
  6. Step 6: Final answer
    x = 1,424,956,358.40

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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.