Home / 315,212,218,385.45-434,993,280,858.55-170,696,597,311.42

Finding the Fourth Proportional to 315,212,218,385.45, 434,993,280,858.55 and 170,696,597,311.42

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Solution

The fourth proportional to 315,212,218,385.45, 434,993,280,858.55 and 170,696,597,311.42 is: 235,561,531,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,212,218,385.45 : 434,993,280,858.55 = 170,696,597,311.42 : x
  2. Step 2: Convert to fraction form
    315,212,218,385.45/434,993,280,858.55 = 170,696,597,311.42/x
  3. Step 3: Cross multiply
    315,212,218,385.45x = 434,993,280,858.55 × 170,696,597,311.42
  4. Step 4: Simplify right side
    315,212,218,385.45x = 74,251,872,895,885,333,495,808
  5. Step 5: Solve for x
    x = 74,251,872,895,885,333,495,808/315,212,218,385.45
  6. Step 6: Final answer
    x = 235,561,531,453.99

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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.