Home / 30,603,019.50-42,232,166.91-16,851,950.82

Finding the Fourth Proportional to 30,603,019.50, 42,232,166.91 and 16,851,950.82

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Solution

The fourth proportional to 30,603,019.50, 42,232,166.91 and 16,851,950.82 is: 23,255,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603,019.50 : 42,232,166.91 = 16,851,950.82 : x
  2. Step 2: Convert to fraction form
    30,603,019.50/42,232,166.91 = 16,851,950.82/x
  3. Step 3: Cross multiply
    30,603,019.50x = 42,232,166.91 × 16,851,950.82
  4. Step 4: Simplify right side
    30,603,019.50x = 711,694,399,789,351.38
  5. Step 5: Solve for x
    x = 711,694,399,789,351.38/30,603,019.50
  6. Step 6: Final answer
    x = 23,255,692.13

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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.