Home / 431,208,000.40-646,812,000.60-329,171,328.40

Finding the Fourth Proportional to 431,208,000.40, 646,812,000.60 and 329,171,328.40

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Solution

The fourth proportional to 431,208,000.40, 646,812,000.60 and 329,171,328.40 is: 493,756,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,208,000.40 : 646,812,000.60 = 329,171,328.40 : x
  2. Step 2: Convert to fraction form
    431,208,000.40/646,812,000.60 = 329,171,328.40/x
  3. Step 3: Cross multiply
    431,208,000.40x = 646,812,000.60 × 329,171,328.40
  4. Step 4: Simplify right side
    431,208,000.40x = 212,911,965,462,563,584
  5. Step 5: Solve for x
    x = 212,911,965,462,563,584/431,208,000.40
  6. Step 6: Final answer
    x = 493,756,992.60

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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.