Home / 147,730,072.64-203,878,054.88-81,649,148.32

Finding the Fourth Proportional to 147,730,072.64, 203,878,054.88 and 81,649,148.32

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Solution

The fourth proportional to 147,730,072.64, 203,878,054.88 and 81,649,148.32 is: 112,681,658.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,730,072.64 : 203,878,054.88 = 81,649,148.32 : x
  2. Step 2: Convert to fraction form
    147,730,072.64/203,878,054.88 = 81,649,148.32/x
  3. Step 3: Cross multiply
    147,730,072.64x = 203,878,054.88 × 81,649,148.32
  4. Step 4: Simplify right side
    147,730,072.64x = 16,646,469,542,090,218
  5. Step 5: Solve for x
    x = 16,646,469,542,090,218/147,730,072.64
  6. Step 6: Final answer
    x = 112,681,658.14

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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.