Home / 205,723,491.68-308,671,707.24-128,065,384.01

Finding the Fourth Proportional to 205,723,491.68, 308,671,707.24 and 128,065,384.01

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Solution

The fourth proportional to 205,723,491.68, 308,671,707.24 and 128,065,384.01 is: 192,151,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,723,491.68 : 308,671,707.24 = 128,065,384.01 : x
  2. Step 2: Convert to fraction form
    205,723,491.68/308,671,707.24 = 128,065,384.01/x
  3. Step 3: Cross multiply
    205,723,491.68x = 308,671,707.24 × 128,065,384.01
  4. Step 4: Simplify right side
    205,723,491.68x = 39,530,160,719,169,536
  5. Step 5: Solve for x
    x = 39,530,160,719,169,536/205,723,491.68
  6. Step 6: Final answer
    x = 192,151,904.47

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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.