Home / 386,276,065.20-579,414,097.80-351,130,100.40

Finding the Fourth Proportional to 386,276,065.20, 579,414,097.80 and 351,130,100.40

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Solution

The fourth proportional to 386,276,065.20, 579,414,097.80 and 351,130,100.40 is: 526,695,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,276,065.20 : 579,414,097.80 = 351,130,100.40 : x
  2. Step 2: Convert to fraction form
    386,276,065.20/579,414,097.80 = 351,130,100.40/x
  3. Step 3: Cross multiply
    386,276,065.20x = 579,414,097.80 × 351,130,100.40
  4. Step 4: Simplify right side
    386,276,065.20x = 203,449,730,333,689,376
  5. Step 5: Solve for x
    x = 203,449,730,333,689,376/386,276,065.20
  6. Step 6: Final answer
    x = 526,695,150.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.