Home / 782,586,565.62-1,079,954,931.78-430,155,022.14

Finding the Fourth Proportional to 782,586,565.62, 1,079,954,931.78 and 430,155,022.14

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Solution

The fourth proportional to 782,586,565.62, 1,079,954,931.78 and 430,155,022.14 is: 593,605,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,586,565.62 : 1,079,954,931.78 = 430,155,022.14 : x
  2. Step 2: Convert to fraction form
    782,586,565.62/1,079,954,931.78 = 430,155,022.14/x
  3. Step 3: Cross multiply
    782,586,565.62x = 1,079,954,931.78 × 430,155,022.14
  4. Step 4: Simplify right side
    782,586,565.62x = 464,548,037,590,028,032
  5. Step 5: Solve for x
    x = 464,548,037,590,028,032/782,586,565.62
  6. Step 6: Final answer
    x = 593,605,944.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.