Home / 919,416,104.20-1,379,796,002.70-647,318,312.20

Finding the Fourth Proportional to 919,416,104.20, 1,379,796,002.70 and 647,318,312.20

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Solution

The fourth proportional to 919,416,104.20, 1,379,796,002.70 and 647,318,312.20 is: 971,450,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,416,104.20 : 1,379,796,002.70 = 647,318,312.20 : x
  2. Step 2: Convert to fraction form
    919,416,104.20/1,379,796,002.70 = 647,318,312.20/x
  3. Step 3: Cross multiply
    919,416,104.20x = 1,379,796,002.70 × 647,318,312.20
  4. Step 4: Simplify right side
    919,416,104.20x = 893,167,219,648,070,784
  5. Step 5: Solve for x
    x = 893,167,219,648,070,784/919,416,104.20
  6. Step 6: Final answer
    x = 971,450,484.25

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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.