Home / 209,860,516.40-314,790,774.60-171,565,271.60

Finding the Fourth Proportional to 209,860,516.40, 314,790,774.60 and 171,565,271.60

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Solution

The fourth proportional to 209,860,516.40, 314,790,774.60 and 171,565,271.60 is: 257,347,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,860,516.40 : 314,790,774.60 = 171,565,271.60 : x
  2. Step 2: Convert to fraction form
    209,860,516.40/314,790,774.60 = 171,565,271.60/x
  3. Step 3: Cross multiply
    209,860,516.40x = 314,790,774.60 × 171,565,271.60
  4. Step 4: Simplify right side
    209,860,516.40x = 54,007,164,741,423,384
  5. Step 5: Solve for x
    x = 54,007,164,741,423,384/209,860,516.40
  6. Step 6: Final answer
    x = 257,347,907.40

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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.