Home / 8,190,828,008.40-12,286,242,012.60-7,961,245,496.40

Finding the Fourth Proportional to 8,190,828,008.40, 12,286,242,012.60 and 7,961,245,496.40

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Solution

The fourth proportional to 8,190,828,008.40, 12,286,242,012.60 and 7,961,245,496.40 is: 11,941,868,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190,828,008.40 : 12,286,242,012.60 = 7,961,245,496.40 : x
  2. Step 2: Convert to fraction form
    8,190,828,008.40/12,286,242,012.60 = 7,961,245,496.40/x
  3. Step 3: Cross multiply
    8,190,828,008.40x = 12,286,242,012.60 × 7,961,245,496.40
  4. Step 4: Simplify right side
    8,190,828,008.40x = 97,813,788,890,492,223,488
  5. Step 5: Solve for x
    x = 97,813,788,890,492,223,488/8,190,828,008.40
  6. Step 6: Final answer
    x = 11,941,868,244.60

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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.