Home / 100,402,302.56-138,610,155.44-70,273,171.37

Finding the Fourth Proportional to 100,402,302.56, 138,610,155.44 and 70,273,171.37

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Solution

The fourth proportional to 100,402,302.56, 138,610,155.44 and 70,273,171.37 is: 97,015,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,402,302.56 : 138,610,155.44 = 70,273,171.37 : x
  2. Step 2: Convert to fraction form
    100,402,302.56/138,610,155.44 = 70,273,171.37/x
  3. Step 3: Cross multiply
    100,402,302.56x = 138,610,155.44 × 70,273,171.37
  4. Step 4: Simplify right side
    100,402,302.56x = 9,740,575,205,813,040
  5. Step 5: Solve for x
    x = 9,740,575,205,813,040/100,402,302.56
  6. Step 6: Final answer
    x = 97,015,456.40

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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.