Home / 689,855,285.40-1,034,782,928.10-626,365,800.60

Finding the Fourth Proportional to 689,855,285.40, 1,034,782,928.10 and 626,365,800.60

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Solution

The fourth proportional to 689,855,285.40, 1,034,782,928.10 and 626,365,800.60 is: 939,548,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,855,285.40 : 1,034,782,928.10 = 626,365,800.60 : x
  2. Step 2: Convert to fraction form
    689,855,285.40/1,034,782,928.10 = 626,365,800.60/x
  3. Step 3: Cross multiply
    689,855,285.40x = 1,034,782,928.10 × 626,365,800.60
  4. Step 4: Simplify right side
    689,855,285.40x = 648,152,637,206,568,832
  5. Step 5: Solve for x
    x = 648,152,637,206,568,832/689,855,285.40
  6. Step 6: Final answer
    x = 939,548,700.90

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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.