Home / 190,780,294.80-286,264,920.60-108,962,000.40

Finding the Fourth Proportional to 190,780,294.80, 286,264,920.60 and 108,962,000.40

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Solution

The fourth proportional to 190,780,294.80, 286,264,920.60 and 108,962,000.40 is: 163,496,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780,294.80 : 286,264,920.60 = 108,962,000.40 : x
  2. Step 2: Convert to fraction form
    190,780,294.80/286,264,920.60 = 108,962,000.40/x
  3. Step 3: Cross multiply
    190,780,294.80x = 286,264,920.60 × 108,962,000.40
  4. Step 4: Simplify right side
    190,780,294.80x = 31,191,998,392,923,172
  5. Step 5: Solve for x
    x = 31,191,998,392,923,172/190,780,294.80
  6. Step 6: Final answer
    x = 163,496,960.87

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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.