Home / 1,205,964,375.60-1,808,946,563.40-478,953,087.60

Finding the Fourth Proportional to 1,205,964,375.60, 1,808,946,563.40 and 478,953,087.60

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Solution

The fourth proportional to 1,205,964,375.60, 1,808,946,563.40 and 478,953,087.60 is: 718,429,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,964,375.60 : 1,808,946,563.40 = 478,953,087.60 : x
  2. Step 2: Convert to fraction form
    1,205,964,375.60/1,808,946,563.40 = 478,953,087.60/x
  3. Step 3: Cross multiply
    1,205,964,375.60x = 1,808,946,563.40 × 478,953,087.60
  4. Step 4: Simplify right side
    1,205,964,375.60x = 866,400,541,843,839,232
  5. Step 5: Solve for x
    x = 866,400,541,843,839,232/1,205,964,375.60
  6. Step 6: Final answer
    x = 718,429,631.40

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Double scale
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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.