Home / 1,210,157,552.19-1,815,764,323.11-423,775,616.64

Finding the Fourth Proportional to 1,210,157,552.19, 1,815,764,323.11 and 423,775,616.64

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Solution

The fourth proportional to 1,210,157,552.19, 1,815,764,323.11 and 423,775,616.64 is: 635,848,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,552.19 : 1,815,764,323.11 = 423,775,616.64 : x
  2. Step 2: Convert to fraction form
    1,210,157,552.19/1,815,764,323.11 = 423,775,616.64/x
  3. Step 3: Cross multiply
    1,210,157,552.19x = 1,815,764,323.11 × 423,775,616.64
  4. Step 4: Simplify right side
    1,210,157,552.19x = 769,476,645,698,852,352
  5. Step 5: Solve for x
    x = 769,476,645,698,852,352/1,210,157,552.19
  6. Step 6: Final answer
    x = 635,848,319.34

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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.