Home / 18,977,106,830.08-28,478,520,456.24-7,787,004,036.64

Finding the Fourth Proportional to 18,977,106,830.08, 28,478,520,456.24 and 7,787,004,036.64

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Solution

The fourth proportional to 18,977,106,830.08, 28,478,520,456.24 and 7,787,004,036.64 is: 11,685,783,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977,106,830.08 : 28,478,520,456.24 = 7,787,004,036.64 : x
  2. Step 2: Convert to fraction form
    18,977,106,830.08/28,478,520,456.24 = 7,787,004,036.64/x
  3. Step 3: Cross multiply
    18,977,106,830.08x = 28,478,520,456.24 × 7,787,004,036.64
  4. Step 4: Simplify right side
    18,977,106,830.08x = 221,762,353,750,275,719,168
  5. Step 5: Solve for x
    x = 221,762,353,750,275,719,168/18,977,106,830.08
  6. Step 6: Final answer
    x = 11,685,783,071.99

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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.