Home / 1,308,103,902.92-1,961,365,532.12-521,278,602.32

Finding the Fourth Proportional to 1,308,103,902.92, 1,961,365,532.12 and 521,278,602.32

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Solution

The fourth proportional to 1,308,103,902.92, 1,961,365,532.12 and 521,278,602.32 is: 781,602,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,103,902.92 : 1,961,365,532.12 = 521,278,602.32 : x
  2. Step 2: Convert to fraction form
    1,308,103,902.92/1,961,365,532.12 = 521,278,602.32/x
  3. Step 3: Cross multiply
    1,308,103,902.92x = 1,961,365,532.12 × 521,278,602.32
  4. Step 4: Simplify right side
    1,308,103,902.92x = 1,022,417,883,222,136,576
  5. Step 5: Solve for x
    x = 1,022,417,883,222,136,576/1,308,103,902.92
  6. Step 6: Final answer
    x = 781,602,960.54

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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.