Home / 8,276,688,172.30-12,415,032,258.45-7,378,765,458.70

Finding the Fourth Proportional to 8,276,688,172.30, 12,415,032,258.45 and 7,378,765,458.70

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Solution

The fourth proportional to 8,276,688,172.30, 12,415,032,258.45 and 7,378,765,458.70 is: 11,068,148,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276,688,172.30 : 12,415,032,258.45 = 7,378,765,458.70 : x
  2. Step 2: Convert to fraction form
    8,276,688,172.30/12,415,032,258.45 = 7,378,765,458.70/x
  3. Step 3: Cross multiply
    8,276,688,172.30x = 12,415,032,258.45 × 7,378,765,458.70
  4. Step 4: Simplify right side
    8,276,688,172.30x = 91,607,611,197,297,115,136
  5. Step 5: Solve for x
    x = 91,607,611,197,297,115,136/8,276,688,172.30
  6. Step 6: Final answer
    x = 11,068,148,188.05

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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.