Home / 289,092,733,959.51-398,957,540,471.13-158,886,203,783.04

Finding the Fourth Proportional to 289,092,733,959.51, 398,957,540,471.13 and 158,886,203,783.04

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Solution

The fourth proportional to 289,092,733,959.51, 398,957,540,471.13 and 158,886,203,783.04 is: 219,268,219,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,092,733,959.51 : 398,957,540,471.13 = 158,886,203,783.04 : x
  2. Step 2: Convert to fraction form
    289,092,733,959.51/398,957,540,471.13 = 158,886,203,783.04/x
  3. Step 3: Cross multiply
    289,092,733,959.51x = 398,957,540,471.13 × 158,886,203,783.04
  4. Step 4: Simplify right side
    289,092,733,959.51x = 63,388,849,076,076,390,907,904
  5. Step 5: Solve for x
    x = 63,388,849,076,076,390,907,904/289,092,733,959.51
  6. Step 6: Final answer
    x = 219,268,219,605.11

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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.