Home / 147,415,548.56-203,439,609.84-81,340,333.16

Finding the Fourth Proportional to 147,415,548.56, 203,439,609.84 and 81,340,333.16

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Solution

The fourth proportional to 147,415,548.56, 203,439,609.84 and 81,340,333.16 is: 112,253,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,415,548.56 : 203,439,609.84 = 81,340,333.16 : x
  2. Step 2: Convert to fraction form
    147,415,548.56/203,439,609.84 = 81,340,333.16/x
  3. Step 3: Cross multiply
    147,415,548.56x = 203,439,609.84 × 81,340,333.16
  4. Step 4: Simplify right side
    147,415,548.56x = 16,547,845,642,326,014
  5. Step 5: Solve for x
    x = 16,547,845,642,326,014/147,415,548.56
  6. Step 6: Final answer
    x = 112,253,054.74

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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.