Home / 118,333,823-163,299,879.32-66,122,980.16

Finding the Fourth Proportional to 118,333,823, 163,299,879.32 and 66,122,980.16

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Solution

The fourth proportional to 118,333,823, 163,299,879.32 and 66,122,980.16 is: 91,249,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,333,823 : 163,299,879.32 = 66,122,980.16 : x
  2. Step 2: Convert to fraction form
    118,333,823/163,299,879.32 = 66,122,980.16/x
  3. Step 3: Cross multiply
    118,333,823x = 163,299,879.32 × 66,122,980.16
  4. Step 4: Simplify right side
    118,333,823x = 10,797,874,680,406,754
  5. Step 5: Solve for x
    x = 10,797,874,680,406,754/118,333,823
  6. Step 6: Final answer
    x = 91,249,267.59

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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.