Home / 645,192,611.40-967,792,416.30-160,518,419.40

Finding the Fourth Proportional to 645,192,611.40, 967,792,416.30 and 160,518,419.40

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Solution

The fourth proportional to 645,192,611.40, 967,792,416.30 and 160,518,419.40 is: 240,778,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,192,611.40 : 967,792,416.30 = 160,518,419.40 : x
  2. Step 2: Convert to fraction form
    645,192,611.40/967,792,416.30 = 160,518,419.40/x
  3. Step 3: Cross multiply
    645,192,611.40x = 967,792,416.30 × 160,518,419.40
  4. Step 4: Simplify right side
    645,192,611.40x = 155,348,508,971,782,784
  5. Step 5: Solve for x
    x = 155,348,508,971,782,784/645,192,611.40
  6. Step 6: Final answer
    x = 240,778,499.67

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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.