Home / 78,180,955.31-107,889,676.65-42,898,992.14

Finding the Fourth Proportional to 78,180,955.31, 107,889,676.65 and 42,898,992.14

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Solution

The fourth proportional to 78,180,955.31, 107,889,676.65 and 42,898,992.14 is: 59,200,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,180,955.31 : 107,889,676.65 = 42,898,992.14 : x
  2. Step 2: Convert to fraction form
    78,180,955.31/107,889,676.65 = 42,898,992.14/x
  3. Step 3: Cross multiply
    78,180,955.31x = 107,889,676.65 × 42,898,992.14
  4. Step 4: Simplify right side
    78,180,955.31x = 4,628,358,390,056,043
  5. Step 5: Solve for x
    x = 4,628,358,390,056,043/78,180,955.31
  6. Step 6: Final answer
    x = 59,200,586.28

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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.