Home / 260,769,466,857.80-391,153,712,060.86-81,709,161,548.52

Finding the Fourth Proportional to 260,769,466,857.80, 391,153,712,060.86 and 81,709,161,548.52

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Solution

The fourth proportional to 260,769,466,857.80, 391,153,712,060.86 and 81,709,161,548.52 is: 122,563,589,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,769,466,857.80 : 391,153,712,060.86 = 81,709,161,548.52 : x
  2. Step 2: Convert to fraction form
    260,769,466,857.80/391,153,712,060.86 = 81,709,161,548.52/x
  3. Step 3: Cross multiply
    260,769,466,857.80x = 391,153,712,060.86 × 81,709,161,548.52
  4. Step 4: Simplify right side
    260,769,466,857.80x = 31,960,841,849,084,085,010,432
  5. Step 5: Solve for x
    x = 31,960,841,849,084,085,010,432/260,769,466,857.80
  6. Step 6: Final answer
    x = 122,563,589,342.74

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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.