Home / 6,905,711,538.86-9,529,490,643.30-3,894,784,280.80

Finding the Fourth Proportional to 6,905,711,538.86, 9,529,490,643.30 and 3,894,784,280.80

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Solution

The fourth proportional to 6,905,711,538.86, 9,529,490,643.30 and 3,894,784,280.80 is: 5,374,581,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905,711,538.86 : 9,529,490,643.30 = 3,894,784,280.80 : x
  2. Step 2: Convert to fraction form
    6,905,711,538.86/9,529,490,643.30 = 3,894,784,280.80/x
  3. Step 3: Cross multiply
    6,905,711,538.86x = 9,529,490,643.30 × 3,894,784,280.80
  4. Step 4: Simplify right side
    6,905,711,538.86x = 37,115,310,361,555,517,440
  5. Step 5: Solve for x
    x = 37,115,310,361,555,517,440/6,905,711,538.86
  6. Step 6: Final answer
    x = 5,374,581,627.50

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Double scale
Find fourth proportional to 6,905,711,539.86, 9,529,490,644.68 and 3,894,784,281.80
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.