Home / 1,119,745,145.60-1,679,617,718.40-392,733,857.60

Finding the Fourth Proportional to 1,119,745,145.60, 1,679,617,718.40 and 392,733,857.60

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Solution

The fourth proportional to 1,119,745,145.60, 1,679,617,718.40 and 392,733,857.60 is: 589,100,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,145.60 : 1,679,617,718.40 = 392,733,857.60 : x
  2. Step 2: Convert to fraction form
    1,119,745,145.60/1,679,617,718.40 = 392,733,857.60/x
  3. Step 3: Cross multiply
    1,119,745,145.60x = 1,679,617,718.40 × 392,733,857.60
  4. Step 4: Simplify right side
    1,119,745,145.60x = 659,642,745,840,542,592
  5. Step 5: Solve for x
    x = 659,642,745,840,542,592/1,119,745,145.60
  6. Step 6: Final answer
    x = 589,100,786.40

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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.