Home / 72,805,302,546.40-109,207,953,819.60-20,460,489,810.40

Finding the Fourth Proportional to 72,805,302,546.40, 109,207,953,819.60 and 20,460,489,810.40

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Solution

The fourth proportional to 72,805,302,546.40, 109,207,953,819.60 and 20,460,489,810.40 is: 30,690,734,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,805,302,546.40 : 109,207,953,819.60 = 20,460,489,810.40 : x
  2. Step 2: Convert to fraction form
    72,805,302,546.40/109,207,953,819.60 = 20,460,489,810.40/x
  3. Step 3: Cross multiply
    72,805,302,546.40x = 109,207,953,819.60 × 20,460,489,810.40
  4. Step 4: Simplify right side
    72,805,302,546.40x = 2,234,448,226,340,559,912,960
  5. Step 5: Solve for x
    x = 2,234,448,226,340,559,912,960/72,805,302,546.40
  6. Step 6: Final answer
    x = 30,690,734,715.60

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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.