Home / 20,289,528,199.40-30,434,292,299.10-12,851,054,810.60

Finding the Fourth Proportional to 20,289,528,199.40, 30,434,292,299.10 and 12,851,054,810.60

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Solution

The fourth proportional to 20,289,528,199.40, 30,434,292,299.10 and 12,851,054,810.60 is: 19,276,582,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,528,199.40 : 30,434,292,299.10 = 12,851,054,810.60 : x
  2. Step 2: Convert to fraction form
    20,289,528,199.40/30,434,292,299.10 = 12,851,054,810.60/x
  3. Step 3: Cross multiply
    20,289,528,199.40x = 30,434,292,299.10 × 12,851,054,810.60
  4. Step 4: Simplify right side
    20,289,528,199.40x = 391,112,758,457,555,550,208
  5. Step 5: Solve for x
    x = 391,112,758,457,555,550,208/20,289,528,199.40
  6. Step 6: Final answer
    x = 19,276,582,215.90

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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.