Home / 689,855,298.40-1,034,782,947.60-626,365,813.60

Finding the Fourth Proportional to 689,855,298.40, 1,034,782,947.60 and 626,365,813.60

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Solution

The fourth proportional to 689,855,298.40, 1,034,782,947.60 and 626,365,813.60 is: 939,548,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,855,298.40 : 1,034,782,947.60 = 626,365,813.60 : x
  2. Step 2: Convert to fraction form
    689,855,298.40/1,034,782,947.60 = 626,365,813.60/x
  3. Step 3: Cross multiply
    689,855,298.40x = 1,034,782,947.60 × 626,365,813.60
  4. Step 4: Simplify right side
    689,855,298.40x = 648,152,662,872,880,256
  5. Step 5: Solve for x
    x = 648,152,662,872,880,256/689,855,298.40
  6. Step 6: Final answer
    x = 939,548,720.40

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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.