Home / 399,178,774.60-598,768,161.90-393,804,003.40

Finding the Fourth Proportional to 399,178,774.60, 598,768,161.90 and 393,804,003.40

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Solution

The fourth proportional to 399,178,774.60, 598,768,161.90 and 393,804,003.40 is: 590,706,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,774.60 : 598,768,161.90 = 393,804,003.40 : x
  2. Step 2: Convert to fraction form
    399,178,774.60/598,768,161.90 = 393,804,003.40/x
  3. Step 3: Cross multiply
    399,178,774.60x = 598,768,161.90 × 393,804,003.40
  4. Step 4: Simplify right side
    399,178,774.60x = 235,797,299,264,679,328
  5. Step 5: Solve for x
    x = 235,797,299,264,679,328/399,178,774.60
  6. Step 6: Final answer
    x = 590,706,005.10

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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.