Home / 620,592,653.90-930,888,980.85-211,662,145.10

Finding the Fourth Proportional to 620,592,653.90, 930,888,980.85 and 211,662,145.10

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Solution

The fourth proportional to 620,592,653.90, 930,888,980.85 and 211,662,145.10 is: 317,493,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,592,653.90 : 930,888,980.85 = 211,662,145.10 : x
  2. Step 2: Convert to fraction form
    620,592,653.90/930,888,980.85 = 211,662,145.10/x
  3. Step 3: Cross multiply
    620,592,653.90x = 930,888,980.85 × 211,662,145.10
  4. Step 4: Simplify right side
    620,592,653.90x = 197,033,958,536,663,808
  5. Step 5: Solve for x
    x = 197,033,958,536,663,808/620,592,653.90
  6. Step 6: Final answer
    x = 317,493,217.65

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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.