Home / 13,868,809,539.80-20,803,214,309.70-8,909,827,280.60

Finding the Fourth Proportional to 13,868,809,539.80, 20,803,214,309.70 and 8,909,827,280.60

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Solution

The fourth proportional to 13,868,809,539.80, 20,803,214,309.70 and 8,909,827,280.60 is: 13,364,740,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868,809,539.80 : 20,803,214,309.70 = 8,909,827,280.60 : x
  2. Step 2: Convert to fraction form
    13,868,809,539.80/20,803,214,309.70 = 8,909,827,280.60/x
  3. Step 3: Cross multiply
    13,868,809,539.80x = 20,803,214,309.70 × 8,909,827,280.60
  4. Step 4: Simplify right side
    13,868,809,539.80x = 185,353,046,380,733,366,272
  5. Step 5: Solve for x
    x = 185,353,046,380,733,366,272/13,868,809,539.80
  6. Step 6: Final answer
    x = 13,364,740,920.90

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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.