Home / 28,662,899,885.43-39,554,985,454.20-15,976,439,978.01

Finding the Fourth Proportional to 28,662,899,885.43, 39,554,985,454.20 and 15,976,439,978.01

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Solution

The fourth proportional to 28,662,899,885.43, 39,554,985,454.20 and 15,976,439,978.01 is: 22,047,589,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662,899,885.43 : 39,554,985,454.20 = 15,976,439,978.01 : x
  2. Step 2: Convert to fraction form
    28,662,899,885.43/39,554,985,454.20 = 15,976,439,978.01/x
  3. Step 3: Cross multiply
    28,662,899,885.43x = 39,554,985,454.20 × 15,976,439,978.01
  4. Step 4: Simplify right side
    28,662,899,885.43x = 631,947,850,940,084,912,128
  5. Step 5: Solve for x
    x = 631,947,850,940,084,912,128/28,662,899,885.43
  6. Step 6: Final answer
    x = 22,047,589,513.49

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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.