Home / 309,749,617.44-427,441,378.32-168,617,900.16

Finding the Fourth Proportional to 309,749,617.44, 427,441,378.32 and 168,617,900.16

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Solution

The fourth proportional to 309,749,617.44, 427,441,378.32 and 168,617,900.16 is: 232,685,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,749,617.44 : 427,441,378.32 = 168,617,900.16 : x
  2. Step 2: Convert to fraction form
    309,749,617.44/427,441,378.32 = 168,617,900.16/x
  3. Step 3: Cross multiply
    309,749,617.44x = 427,441,378.32 × 168,617,900.16
  4. Step 4: Simplify right side
    309,749,617.44x = 72,074,267,653,814,544
  5. Step 5: Solve for x
    x = 72,074,267,653,814,544/309,749,617.44
  6. Step 6: Final answer
    x = 232,685,574.40

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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.