Home / 698,477,491.52-963,899,894.72-380,938,504.64

Finding the Fourth Proportional to 698,477,491.52, 963,899,894.72 and 380,938,504.64

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Solution

The fourth proportional to 698,477,491.52, 963,899,894.72 and 380,938,504.64 is: 525,695,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,477,491.52 : 963,899,894.72 = 380,938,504.64 : x
  2. Step 2: Convert to fraction form
    698,477,491.52/963,899,894.72 = 380,938,504.64/x
  3. Step 3: Cross multiply
    698,477,491.52x = 963,899,894.72 × 380,938,504.64
  4. Step 4: Simplify right side
    698,477,491.52x = 367,186,584,520,652,288
  5. Step 5: Solve for x
    x = 367,186,584,520,652,288/698,477,491.52
  6. Step 6: Final answer
    x = 525,695,658.03

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1.5x scale

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.