Home / 1,398,068,114,331.10-1,929,054,181,530.80-780,675,837,485.70

Finding the Fourth Proportional to 1,398,068,114,331.10, 1,929,054,181,530.80 and 780,675,837,485.70

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Solution

The fourth proportional to 1,398,068,114,331.10, 1,929,054,181,530.80 and 780,675,837,485.70 is: 1,077,176,407,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,068,114,331.10 : 1,929,054,181,530.80 = 780,675,837,485.70 : x
  2. Step 2: Convert to fraction form
    1,398,068,114,331.10/1,929,054,181,530.80 = 780,675,837,485.70/x
  3. Step 3: Cross multiply
    1,398,068,114,331.10x = 1,929,054,181,530.80 × 780,675,837,485.70
  4. Step 4: Simplify right side
    1,398,068,114,331.10x = 1,505,965,988,721,848,901,173,248
  5. Step 5: Solve for x
    x = 1,505,965,988,721,848,901,173,248/1,398,068,114,331.10
  6. Step 6: Final answer
    x = 1,077,176,407,418.73

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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.