Home / 408,068,460.30-612,102,690.45-392,196,089.10

Finding the Fourth Proportional to 408,068,460.30, 612,102,690.45 and 392,196,089.10

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Solution

The fourth proportional to 408,068,460.30, 612,102,690.45 and 392,196,089.10 is: 588,294,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,068,460.30 : 612,102,690.45 = 392,196,089.10 : x
  2. Step 2: Convert to fraction form
    408,068,460.30/612,102,690.45 = 392,196,089.10/x
  3. Step 3: Cross multiply
    408,068,460.30x = 612,102,690.45 × 392,196,089.10
  4. Step 4: Simplify right side
    408,068,460.30x = 240,064,281,322,077,952
  5. Step 5: Solve for x
    x = 240,064,281,322,077,952/408,068,460.30
  6. Step 6: Final answer
    x = 588,294,133.65

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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.