Home / 205,076,509,973.60-307,369,876,947.60-85,693,603,733.60

Finding the Fourth Proportional to 205,076,509,973.60, 307,369,876,947.60 and 85,693,603,733.60

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Solution

The fourth proportional to 205,076,509,973.60, 307,369,876,947.60 and 85,693,603,733.60 is: 128,438,076,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,076,509,973.60 : 307,369,876,947.60 = 85,693,603,733.60 : x
  2. Step 2: Convert to fraction form
    205,076,509,973.60/307,369,876,947.60 = 85,693,603,733.60/x
  3. Step 3: Cross multiply
    205,076,509,973.60x = 307,369,876,947.60 × 85,693,603,733.60
  4. Step 4: Simplify right side
    205,076,509,973.60x = 26,339,632,434,793,028,780,032
  5. Step 5: Solve for x
    x = 26,339,632,434,793,028,780,032/205,076,509,973.60
  6. Step 6: Final answer
    x = 128,438,076,297.40

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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.