Home / 403,358,835.40-605,038,253.10-394,400,883.40

Finding the Fourth Proportional to 403,358,835.40, 605,038,253.10 and 394,400,883.40

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Solution

The fourth proportional to 403,358,835.40, 605,038,253.10 and 394,400,883.40 is: 591,601,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,358,835.40 : 605,038,253.10 = 394,400,883.40 : x
  2. Step 2: Convert to fraction form
    403,358,835.40/605,038,253.10 = 394,400,883.40/x
  3. Step 3: Cross multiply
    403,358,835.40x = 605,038,253.10 × 394,400,883.40
  4. Step 4: Simplify right side
    403,358,835.40x = 238,627,621,513,432,768
  5. Step 5: Solve for x
    x = 238,627,621,513,432,768/403,358,835.40
  6. Step 6: Final answer
    x = 591,601,325.10

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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.