Home / 418,326,556.76-627,566,448.64-172,549,117.18

Finding the Fourth Proportional to 418,326,556.76, 627,566,448.64 and 172,549,117.18

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Solution

The fourth proportional to 418,326,556.76, 627,566,448.64 and 172,549,117.18 is: 258,855,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,326,556.76 : 627,566,448.64 = 172,549,117.18 : x
  2. Step 2: Convert to fraction form
    418,326,556.76/627,566,448.64 = 172,549,117.18/x
  3. Step 3: Cross multiply
    418,326,556.76x = 627,566,448.64 × 172,549,117.18
  4. Step 4: Simplify right side
    418,326,556.76x = 108,286,036,685,783,888
  5. Step 5: Solve for x
    x = 108,286,036,685,783,888/418,326,556.76
  6. Step 6: Final answer
    x = 258,855,276.90

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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.