Home / 1,210,157,554.19-1,815,764,326.11-423,775,618.64

Finding the Fourth Proportional to 1,210,157,554.19, 1,815,764,326.11 and 423,775,618.64

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Solution

The fourth proportional to 1,210,157,554.19, 1,815,764,326.11 and 423,775,618.64 is: 635,848,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,554.19 : 1,815,764,326.11 = 423,775,618.64 : x
  2. Step 2: Convert to fraction form
    1,210,157,554.19/1,815,764,326.11 = 423,775,618.64/x
  3. Step 3: Cross multiply
    1,210,157,554.19x = 1,815,764,326.11 × 423,775,618.64
  4. Step 4: Simplify right side
    1,210,157,554.19x = 769,476,650,601,707,904
  5. Step 5: Solve for x
    x = 769,476,650,601,707,904/1,210,157,554.19
  6. Step 6: Final answer
    x = 635,848,322.34

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Double scale
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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.