Home / 78,610,573.56-108,490,663.86-47,258,772.49

Finding the Fourth Proportional to 78,610,573.56, 108,490,663.86 and 47,258,772.49

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Solution

The fourth proportional to 78,610,573.56, 108,490,663.86 and 47,258,772.49 is: 65,221,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,610,573.56 : 108,490,663.86 = 47,258,772.49 : x
  2. Step 2: Convert to fraction form
    78,610,573.56/108,490,663.86 = 47,258,772.49/x
  3. Step 3: Cross multiply
    78,610,573.56x = 108,490,663.86 × 47,258,772.49
  4. Step 4: Simplify right side
    78,610,573.56x = 5,127,135,600,106,352
  5. Step 5: Solve for x
    x = 5,127,135,600,106,352/78,610,573.56
  6. Step 6: Final answer
    x = 65,221,958.93

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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.