Home / 646,603,280.40-969,904,920.60-442,529,936.40

Finding the Fourth Proportional to 646,603,280.40, 969,904,920.60 and 442,529,936.40

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Solution

The fourth proportional to 646,603,280.40, 969,904,920.60 and 442,529,936.40 is: 663,794,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,603,280.40 : 969,904,920.60 = 442,529,936.40 : x
  2. Step 2: Convert to fraction form
    646,603,280.40/969,904,920.60 = 442,529,936.40/x
  3. Step 3: Cross multiply
    646,603,280.40x = 969,904,920.60 × 442,529,936.40
  4. Step 4: Simplify right side
    646,603,280.40x = 429,211,962,827,165,056
  5. Step 5: Solve for x
    x = 429,211,962,827,165,056/646,603,280.40
  6. Step 6: Final answer
    x = 663,794,904.60

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1.5x scale

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.