Home / 848,678,489.60-1,273,017,734.40-644,605,145.60

Finding the Fourth Proportional to 848,678,489.60, 1,273,017,734.40 and 644,605,145.60

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Solution

The fourth proportional to 848,678,489.60, 1,273,017,734.40 and 644,605,145.60 is: 966,907,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,678,489.60 : 1,273,017,734.40 = 644,605,145.60 : x
  2. Step 2: Convert to fraction form
    848,678,489.60/1,273,017,734.40 = 644,605,145.60/x
  3. Step 3: Cross multiply
    848,678,489.60x = 1,273,017,734.40 × 644,605,145.60
  4. Step 4: Simplify right side
    848,678,489.60x = 820,593,782,034,294,272
  5. Step 5: Solve for x
    x = 820,593,782,034,294,272/848,678,489.60
  6. Step 6: Final answer
    x = 966,907,718.40

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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.