Home / 506,936,150.78-699,451,973.34-286,919,576.78

Finding the Fourth Proportional to 506,936,150.78, 699,451,973.34 and 286,919,576.78

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Solution

The fourth proportional to 506,936,150.78, 699,451,973.34 and 286,919,576.78 is: 395,881,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,936,150.78 : 699,451,973.34 = 286,919,576.78 : x
  2. Step 2: Convert to fraction form
    506,936,150.78/699,451,973.34 = 286,919,576.78/x
  3. Step 3: Cross multiply
    506,936,150.78x = 699,451,973.34 × 286,919,576.78
  4. Step 4: Simplify right side
    506,936,150.78x = 200,686,464,168,648,640
  5. Step 5: Solve for x
    x = 200,686,464,168,648,640/506,936,150.78
  6. Step 6: Final answer
    x = 395,881,145.70

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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.