Home / 280,004,632.76-386,406,431.03-154,556,852.35

Finding the Fourth Proportional to 280,004,632.76, 386,406,431.03 and 154,556,852.35

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Solution

The fourth proportional to 280,004,632.76, 386,406,431.03 and 154,556,852.35 is: 213,288,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,004,632.76 : 386,406,431.03 = 154,556,852.35 : x
  2. Step 2: Convert to fraction form
    280,004,632.76/386,406,431.03 = 154,556,852.35/x
  3. Step 3: Cross multiply
    280,004,632.76x = 386,406,431.03 × 154,556,852.35
  4. Step 4: Simplify right side
    280,004,632.76x = 59,721,761,707,214,544
  5. Step 5: Solve for x
    x = 59,721,761,707,214,544/280,004,632.76
  6. Step 6: Final answer
    x = 213,288,477.12

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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.