Home / 750,420,640.10-1,035,580,581.56-415,914,758.87

Finding the Fourth Proportional to 750,420,640.10, 1,035,580,581.56 and 415,914,758.87

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Solution

The fourth proportional to 750,420,640.10, 1,035,580,581.56 and 415,914,758.87 is: 573,962,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,420,640.10 : 1,035,580,581.56 = 415,914,758.87 : x
  2. Step 2: Convert to fraction form
    750,420,640.10/1,035,580,581.56 = 415,914,758.87/x
  3. Step 3: Cross multiply
    750,420,640.10x = 1,035,580,581.56 × 415,914,758.87
  4. Step 4: Simplify right side
    750,420,640.10x = 430,713,247,865,843,648
  5. Step 5: Solve for x
    x = 430,713,247,865,843,648/750,420,640.10
  6. Step 6: Final answer
    x = 573,962,421.67

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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.