Home / 20,912,257,107.60-31,368,385,661.40-7,824,353,312.40

Finding the Fourth Proportional to 20,912,257,107.60, 31,368,385,661.40 and 7,824,353,312.40

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Solution

The fourth proportional to 20,912,257,107.60, 31,368,385,661.40 and 7,824,353,312.40 is: 11,736,529,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,257,107.60 : 31,368,385,661.40 = 7,824,353,312.40 : x
  2. Step 2: Convert to fraction form
    20,912,257,107.60/31,368,385,661.40 = 7,824,353,312.40/x
  3. Step 3: Cross multiply
    20,912,257,107.60x = 31,368,385,661.40 × 7,824,353,312.40
  4. Step 4: Simplify right side
    20,912,257,107.60x = 245,437,332,254,415,749,120
  5. Step 5: Solve for x
    x = 245,437,332,254,415,749,120/20,912,257,107.60
  6. Step 6: Final answer
    x = 11,736,529,968.60

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Similar ratio
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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.