Home / 489,307,311.80-733,960,967.70-470,495,612.60

Finding the Fourth Proportional to 489,307,311.80, 733,960,967.70 and 470,495,612.60

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Solution

The fourth proportional to 489,307,311.80, 733,960,967.70 and 470,495,612.60 is: 705,743,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,307,311.80 : 733,960,967.70 = 470,495,612.60 : x
  2. Step 2: Convert to fraction form
    489,307,311.80/733,960,967.70 = 470,495,612.60/x
  3. Step 3: Cross multiply
    489,307,311.80x = 733,960,967.70 × 470,495,612.60
  4. Step 4: Simplify right side
    489,307,311.80x = 345,325,415,122,500,352
  5. Step 5: Solve for x
    x = 345,325,415,122,500,352/489,307,311.80
  6. Step 6: Final answer
    x = 705,743,418.90

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1.5x scale

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.