Home / 189,199,400,384.71-261,096,800,499.42-107,913,338,941.15

Finding the Fourth Proportional to 189,199,400,384.71, 261,096,800,499.42 and 107,913,338,941.15

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Solution

The fourth proportional to 189,199,400,384.71, 261,096,800,499.42 and 107,913,338,941.15 is: 148,921,336,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,199,400,384.71 : 261,096,800,499.42 = 107,913,338,941.15 : x
  2. Step 2: Convert to fraction form
    189,199,400,384.71/261,096,800,499.42 = 107,913,338,941.15/x
  3. Step 3: Cross multiply
    189,199,400,384.71x = 261,096,800,499.42 × 107,913,338,941.15
  4. Step 4: Simplify right side
    189,199,400,384.71x = 28,175,827,528,743,733,166,080
  5. Step 5: Solve for x
    x = 28,175,827,528,743,733,166,080/189,199,400,384.71
  6. Step 6: Final answer
    x = 148,921,336,280.41

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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.