Home / 746,532,921.40-1,119,967,343.70-439,667,078.20

Finding the Fourth Proportional to 746,532,921.40, 1,119,967,343.70 and 439,667,078.20

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Solution

The fourth proportional to 746,532,921.40, 1,119,967,343.70 and 439,667,078.20 is: 659,599,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,532,921.40 : 1,119,967,343.70 = 439,667,078.20 : x
  2. Step 2: Convert to fraction form
    746,532,921.40/1,119,967,343.70 = 439,667,078.20/x
  3. Step 3: Cross multiply
    746,532,921.40x = 1,119,967,343.70 × 439,667,078.20
  4. Step 4: Simplify right side
    746,532,921.40x = 492,412,769,683,994,176
  5. Step 5: Solve for x
    x = 492,412,769,683,994,176/746,532,921.40
  6. Step 6: Final answer
    x = 659,599,537.50

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Double scale
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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.