Home / 399,488,328.40-599,232,492.60-308,789,064.40

Finding the Fourth Proportional to 399,488,328.40, 599,232,492.60 and 308,789,064.40

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Solution

The fourth proportional to 399,488,328.40, 599,232,492.60 and 308,789,064.40 is: 463,183,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,488,328.40 : 599,232,492.60 = 308,789,064.40 : x
  2. Step 2: Convert to fraction form
    399,488,328.40/599,232,492.60 = 308,789,064.40/x
  3. Step 3: Cross multiply
    399,488,328.40x = 599,232,492.60 × 308,789,064.40
  4. Step 4: Simplify right side
    399,488,328.40x = 185,036,440,748,033,920
  5. Step 5: Solve for x
    x = 185,036,440,748,033,920/399,488,328.40
  6. Step 6: Final answer
    x = 463,183,596.60

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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.