Home / 662,496,640.40-992,998,464.60-317,615,488.40

Finding the Fourth Proportional to 662,496,640.40, 992,998,464.60 and 317,615,488.40

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Solution

The fourth proportional to 662,496,640.40, 992,998,464.60 and 317,615,488.40 is: 476,065,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,496,640.40 : 992,998,464.60 = 317,615,488.40 : x
  2. Step 2: Convert to fraction form
    662,496,640.40/992,998,464.60 = 317,615,488.40/x
  3. Step 3: Cross multiply
    662,496,640.40x = 992,998,464.60 × 317,615,488.40
  4. Step 4: Simplify right side
    662,496,640.40x = 315,391,692,314,379,072
  5. Step 5: Solve for x
    x = 315,391,692,314,379,072/662,496,640.40
  6. Step 6: Final answer
    x = 476,065,345.97

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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.