Home / 459,616,785-633,530,221.07-310,883,665.65

Finding the Fourth Proportional to 459,616,785, 633,530,221.07 and 310,883,665.65

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Solution

The fourth proportional to 459,616,785, 633,530,221.07 and 310,883,665.65 is: 428,518,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,616,785 : 633,530,221.07 = 310,883,665.65 : x
  2. Step 2: Convert to fraction form
    459,616,785/633,530,221.07 = 310,883,665.65/x
  3. Step 3: Cross multiply
    459,616,785x = 633,530,221.07 × 310,883,665.65
  4. Step 4: Simplify right side
    459,616,785x = 196,954,197,424,742,048
  5. Step 5: Solve for x
    x = 196,954,197,424,742,048/459,616,785
  6. Step 6: Final answer
    x = 428,518,287.09

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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.