Home / 13,869,144,423.40-20,803,716,635.10-7,991,832,116.20

Finding the Fourth Proportional to 13,869,144,423.40, 20,803,716,635.10 and 7,991,832,116.20

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Solution

The fourth proportional to 13,869,144,423.40, 20,803,716,635.10 and 7,991,832,116.20 is: 11,987,748,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869,144,423.40 : 20,803,716,635.10 = 7,991,832,116.20 : x
  2. Step 2: Convert to fraction form
    13,869,144,423.40/20,803,716,635.10 = 7,991,832,116.20/x
  3. Step 3: Cross multiply
    13,869,144,423.40x = 20,803,716,635.10 × 7,991,832,116.20
  4. Step 4: Simplify right side
    13,869,144,423.40x = 166,259,810,740,716,371,968
  5. Step 5: Solve for x
    x = 166,259,810,740,716,371,968/13,869,144,423.40
  6. Step 6: Final answer
    x = 11,987,748,174.30

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Double scale
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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.