Home / 386,030,534.20-532,719,639.48-221,049,990.16

Finding the Fourth Proportional to 386,030,534.20, 532,719,639.48 and 221,049,990.16

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Solution

The fourth proportional to 386,030,534.20, 532,719,639.48 and 221,049,990.16 is: 305,047,556.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,030,534.20 : 532,719,639.48 = 221,049,990.16 : x
  2. Step 2: Convert to fraction form
    386,030,534.20/532,719,639.48 = 221,049,990.16/x
  3. Step 3: Cross multiply
    386,030,534.20x = 532,719,639.48 × 221,049,990.16
  4. Step 4: Simplify right side
    386,030,534.20x = 117,757,671,065,092,752
  5. Step 5: Solve for x
    x = 117,757,671,065,092,752/386,030,534.20
  6. Step 6: Final answer
    x = 305,047,556.17

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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.