Home / 209,085,438.72-313,423,441.92-117,014,138.40

Finding the Fourth Proportional to 209,085,438.72, 313,423,441.92 and 117,014,138.40

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Solution

The fourth proportional to 209,085,438.72, 313,423,441.92 and 117,014,138.40 is: 175,406,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,085,438.72 : 313,423,441.92 = 117,014,138.40 : x
  2. Step 2: Convert to fraction form
    209,085,438.72/313,423,441.92 = 117,014,138.40/x
  3. Step 3: Cross multiply
    209,085,438.72x = 313,423,441.92 × 117,014,138.40
  4. Step 4: Simplify right side
    209,085,438.72x = 36,674,974,010,631,248
  5. Step 5: Solve for x
    x = 36,674,974,010,631,248/209,085,438.72
  6. Step 6: Final answer
    x = 175,406,638.72

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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.