Home / 261,357,946,753.20-391,804,335,999.72-102,144,839,440.56

Finding the Fourth Proportional to 261,357,946,753.20, 391,804,335,999.72 and 102,144,839,440.56

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Solution

The fourth proportional to 261,357,946,753.20, 391,804,335,999.72 and 102,144,839,440.56 is: 153,126,359,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,357,946,753.20 : 391,804,335,999.72 = 102,144,839,440.56 : x
  2. Step 2: Convert to fraction form
    261,357,946,753.20/391,804,335,999.72 = 102,144,839,440.56/x
  3. Step 3: Cross multiply
    261,357,946,753.20x = 391,804,335,999.72 × 102,144,839,440.56
  4. Step 4: Simplify right side
    261,357,946,753.20x = 40,020,790,992,806,615,187,456
  5. Step 5: Solve for x
    x = 40,020,790,992,806,615,187,456/261,357,946,753.20
  6. Step 6: Final answer
    x = 153,126,359,806.45

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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.