Home / 81,783,083,999.10-122,674,625,998.65-53,865,850,539.90

Finding the Fourth Proportional to 81,783,083,999.10, 122,674,625,998.65 and 53,865,850,539.90

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Solution

The fourth proportional to 81,783,083,999.10, 122,674,625,998.65 and 53,865,850,539.90 is: 80,798,775,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,783,083,999.10 : 122,674,625,998.65 = 53,865,850,539.90 : x
  2. Step 2: Convert to fraction form
    81,783,083,999.10/122,674,625,998.65 = 53,865,850,539.90/x
  3. Step 3: Cross multiply
    81,783,083,999.10x = 122,674,625,998.65 × 53,865,850,539.90
  4. Step 4: Simplify right side
    81,783,083,999.10x = 6,607,973,069,081,411,584,000
  5. Step 5: Solve for x
    x = 6,607,973,069,081,411,584,000/81,783,083,999.10
  6. Step 6: Final answer
    x = 80,798,775,809.85

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1.5x scale

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.