Home / 125,686,556.03-173,444,728.55-72,765,495.10

Finding the Fourth Proportional to 125,686,556.03, 173,444,728.55 and 72,765,495.10

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Solution

The fourth proportional to 125,686,556.03, 173,444,728.55 and 72,765,495.10 is: 100,414,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,686,556.03 : 173,444,728.55 = 72,765,495.10 : x
  2. Step 2: Convert to fraction form
    125,686,556.03/173,444,728.55 = 72,765,495.10/x
  3. Step 3: Cross multiply
    125,686,556.03x = 173,444,728.55 × 72,765,495.10
  4. Step 4: Simplify right side
    125,686,556.03x = 12,620,791,544,303,206
  5. Step 5: Solve for x
    x = 12,620,791,544,303,206/125,686,556.03
  6. Step 6: Final answer
    x = 100,414,809.21

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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.