Home / 30,888,739.53-42,626,465.82-17,137,670.85

Finding the Fourth Proportional to 30,888,739.53, 42,626,465.82 and 17,137,670.85

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Solution

The fourth proportional to 30,888,739.53, 42,626,465.82 and 17,137,670.85 is: 23,649,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888,739.53 : 42,626,465.82 = 17,137,670.85 : x
  2. Step 2: Convert to fraction form
    30,888,739.53/42,626,465.82 = 17,137,670.85/x
  3. Step 3: Cross multiply
    30,888,739.53x = 42,626,465.82 × 17,137,670.85
  4. Step 4: Simplify right side
    30,888,739.53x = 730,518,340,721,935.38
  5. Step 5: Solve for x
    x = 730,518,340,721,935.38/30,888,739.53
  6. Step 6: Final answer
    x = 23,649,988.70

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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.