Home / 384,557,355.78-530,688,432.95-208,349,730.60

Finding the Fourth Proportional to 384,557,355.78, 530,688,432.95 and 208,349,730.60

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Solution

The fourth proportional to 384,557,355.78, 530,688,432.95 and 208,349,730.60 is: 287,522,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,557,355.78 : 530,688,432.95 = 208,349,730.60 : x
  2. Step 2: Convert to fraction form
    384,557,355.78/530,688,432.95 = 208,349,730.60/x
  3. Step 3: Cross multiply
    384,557,355.78x = 530,688,432.95 × 208,349,730.60
  4. Step 4: Simplify right side
    384,557,355.78x = 110,568,792,036,626,912
  5. Step 5: Solve for x
    x = 110,568,792,036,626,912/384,557,355.78
  6. Step 6: Final answer
    x = 287,522,239.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.