Home / 20,912,257,130.10-31,368,385,695.15-7,824,353,334.90

Finding the Fourth Proportional to 20,912,257,130.10, 31,368,385,695.15 and 7,824,353,334.90

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Solution

The fourth proportional to 20,912,257,130.10, 31,368,385,695.15 and 7,824,353,334.90 is: 11,736,530,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,257,130.10 : 31,368,385,695.15 = 7,824,353,334.90 : x
  2. Step 2: Convert to fraction form
    20,912,257,130.10/31,368,385,695.15 = 7,824,353,334.90/x
  3. Step 3: Cross multiply
    20,912,257,130.10x = 31,368,385,695.15 × 7,824,353,334.90
  4. Step 4: Simplify right side
    20,912,257,130.10x = 245,437,333,224,276,361,216
  5. Step 5: Solve for x
    x = 245,437,333,224,276,361,216/20,912,257,130.10
  6. Step 6: Final answer
    x = 11,736,530,002.35

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Double scale
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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.