Home / 28,759,350,415.67-39,684,465,858.71-15,897,252,801.29

Finding the Fourth Proportional to 28,759,350,415.67, 39,684,465,858.71 and 15,897,252,801.29

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Solution

The fourth proportional to 28,759,350,415.67, 39,684,465,858.71 and 15,897,252,801.29 is: 21,936,308,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759,350,415.67 : 39,684,465,858.71 = 15,897,252,801.29 : x
  2. Step 2: Convert to fraction form
    28,759,350,415.67/39,684,465,858.71 = 15,897,252,801.29/x
  3. Step 3: Cross multiply
    28,759,350,415.67x = 39,684,465,858.71 × 15,897,252,801.29
  4. Step 4: Simplify right side
    28,759,350,415.67x = 630,873,986,039,995,432,960
  5. Step 5: Solve for x
    x = 630,873,986,039,995,432,960/28,759,350,415.67
  6. Step 6: Final answer
    x = 21,936,308,606.48

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Double scale
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1.5x scale

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.