Home / 403,878,180.96-557,351,866.08-218,239,191.36

Finding the Fourth Proportional to 403,878,180.96, 557,351,866.08 and 218,239,191.36

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Solution

The fourth proportional to 403,878,180.96, 557,351,866.08 and 218,239,191.36 is: 301,170,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,878,180.96 : 557,351,866.08 = 218,239,191.36 : x
  2. Step 2: Convert to fraction form
    403,878,180.96/557,351,866.08 = 218,239,191.36/x
  3. Step 3: Cross multiply
    403,878,180.96x = 557,351,866.08 × 218,239,191.36
  4. Step 4: Simplify right side
    403,878,180.96x = 121,636,020,556,286,224
  5. Step 5: Solve for x
    x = 121,636,020,556,286,224/403,878,180.96
  6. Step 6: Final answer
    x = 301,170,071.30

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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.