Home / 21,583,834,845.67-29,783,693,210.56-11,938,357,218.48

Finding the Fourth Proportional to 21,583,834,845.67, 29,783,693,210.56 and 11,938,357,218.48

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Solution

The fourth proportional to 21,583,834,845.67, 29,783,693,210.56 and 11,938,357,218.48 is: 16,473,827,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583,834,845.67 : 29,783,693,210.56 = 11,938,357,218.48 : x
  2. Step 2: Convert to fraction form
    21,583,834,845.67/29,783,693,210.56 = 11,938,357,218.48/x
  3. Step 3: Cross multiply
    21,583,834,845.67x = 29,783,693,210.56 × 11,938,357,218.48
  4. Step 4: Simplify right side
    21,583,834,845.67x = 355,568,368,833,133,871,104
  5. Step 5: Solve for x
    x = 355,568,368,833,133,871,104/21,583,834,845.67
  6. Step 6: Final answer
    x = 16,473,827,351.61

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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.