Home / 218,905,490,499.52-302,102,024,980.80-122,560,734,071.20

Finding the Fourth Proportional to 218,905,490,499.52, 302,102,024,980.80 and 122,560,734,071.20

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Solution

The fourth proportional to 218,905,490,499.52, 302,102,024,980.80 and 122,560,734,071.20 is: 169,140,782,451.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,905,490,499.52 : 302,102,024,980.80 = 122,560,734,071.20 : x
  2. Step 2: Convert to fraction form
    218,905,490,499.52/302,102,024,980.80 = 122,560,734,071.20/x
  3. Step 3: Cross multiply
    218,905,490,499.52x = 302,102,024,980.80 × 122,560,734,071.20
  4. Step 4: Simplify right side
    218,905,490,499.52x = 37,025,845,946,042,843,922,432
  5. Step 5: Solve for x
    x = 37,025,845,946,042,843,922,432/218,905,490,499.52
  6. Step 6: Final answer
    x = 169,140,782,451.61

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1.5x scale

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.