Home / 418,326,644.86-627,566,580.60-172,549,205.08

Finding the Fourth Proportional to 418,326,644.86, 627,566,580.60 and 172,549,205.08

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Solution

The fourth proportional to 418,326,644.86, 627,566,580.60 and 172,549,205.08 is: 258,855,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,326,644.86 : 627,566,580.60 = 172,549,205.08 : x
  2. Step 2: Convert to fraction form
    418,326,644.86/627,566,580.60 = 172,549,205.08/x
  3. Step 3: Cross multiply
    418,326,644.86x = 627,566,580.60 × 172,549,205.08
  4. Step 4: Simplify right side
    418,326,644.86x = 108,286,114,617,303,760
  5. Step 5: Solve for x
    x = 108,286,114,617,303,760/418,326,644.86
  6. Step 6: Final answer
    x = 258,855,408.68

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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.