Home / 931,159,981.38-1,396,848,030.12-309,430,698.42

Finding the Fourth Proportional to 931,159,981.38, 1,396,848,030.12 and 309,430,698.42

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Solution

The fourth proportional to 931,159,981.38, 1,396,848,030.12 and 309,430,698.42 is: 464,181,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,159,981.38 : 1,396,848,030.12 = 309,430,698.42 : x
  2. Step 2: Convert to fraction form
    931,159,981.38/1,396,848,030.12 = 309,430,698.42/x
  3. Step 3: Cross multiply
    931,159,981.38x = 1,396,848,030.12 × 309,430,698.42
  4. Step 4: Simplify right side
    931,159,981.38x = 432,227,661,546,632,768
  5. Step 5: Solve for x
    x = 432,227,661,546,632,768/931,159,981.38
  6. Step 6: Final answer
    x = 464,181,956.04

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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.