Home / 81,317,532-112,217,866.32-46,510,173.12

Finding the Fourth Proportional to 81,317,532, 112,217,866.32 and 46,510,173.12

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Solution

The fourth proportional to 81,317,532, 112,217,866.32 and 46,510,173.12 is: 64,183,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,317,532 : 112,217,866.32 = 46,510,173.12 : x
  2. Step 2: Convert to fraction form
    81,317,532/112,217,866.32 = 46,510,173.12/x
  3. Step 3: Cross multiply
    81,317,532x = 112,217,866.32 × 46,510,173.12
  4. Step 4: Simplify right side
    81,317,532x = 5,219,272,389,700,217
  5. Step 5: Solve for x
    x = 5,219,272,389,700,217/81,317,532
  6. Step 6: Final answer
    x = 64,183,851.40

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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.