Home / 746,688,007.20-1,120,032,010.80-488,698,989.60

Finding the Fourth Proportional to 746,688,007.20, 1,120,032,010.80 and 488,698,989.60

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Solution

The fourth proportional to 746,688,007.20, 1,120,032,010.80 and 488,698,989.60 is: 733,048,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,688,007.20 : 1,120,032,010.80 = 488,698,989.60 : x
  2. Step 2: Convert to fraction form
    746,688,007.20/1,120,032,010.80 = 488,698,989.60/x
  3. Step 3: Cross multiply
    746,688,007.20x = 1,120,032,010.80 × 488,698,989.60
  4. Step 4: Simplify right side
    746,688,007.20x = 547,358,511,997,616,320
  5. Step 5: Solve for x
    x = 547,358,511,997,616,320/746,688,007.20
  6. Step 6: Final answer
    x = 733,048,484.40

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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.