Home / 12,865,206,914.22-17,754,416,649.63-7,149,732,196.35

Finding the Fourth Proportional to 12,865,206,914.22, 17,754,416,649.63 and 7,149,732,196.35

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Solution

The fourth proportional to 12,865,206,914.22, 17,754,416,649.63 and 7,149,732,196.35 is: 9,866,870,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865,206,914.22 : 17,754,416,649.63 = 7,149,732,196.35 : x
  2. Step 2: Convert to fraction form
    12,865,206,914.22/17,754,416,649.63 = 7,149,732,196.35/x
  3. Step 3: Cross multiply
    12,865,206,914.22x = 17,754,416,649.63 × 7,149,732,196.35
  4. Step 4: Simplify right side
    12,865,206,914.22x = 126,939,324,347,272,118,272
  5. Step 5: Solve for x
    x = 126,939,324,347,272,118,272/12,865,206,914.22
  6. Step 6: Final answer
    x = 9,866,870,015.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.