Home / 1,509,102,171.76-2,082,142,793.64-906,116,178.64

Finding the Fourth Proportional to 1,509,102,171.76, 2,082,142,793.64 and 906,116,178.64

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Solution

The fourth proportional to 1,509,102,171.76, 2,082,142,793.64 and 906,116,178.64 is: 1,250,189,223.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,102,171.76 : 2,082,142,793.64 = 906,116,178.64 : x
  2. Step 2: Convert to fraction form
    1,509,102,171.76/2,082,142,793.64 = 906,116,178.64/x
  3. Step 3: Cross multiply
    1,509,102,171.76x = 2,082,142,793.64 × 906,116,178.64
  4. Step 4: Simplify right side
    1,509,102,171.76x = 1,886,663,271,555,890,944
  5. Step 5: Solve for x
    x = 1,886,663,271,555,890,944/1,509,102,171.76
  6. Step 6: Final answer
    x = 1,250,189,223.01

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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.