Home / 30,686,815.07-42,334,521.01-18,766,152.19

Finding the Fourth Proportional to 30,686,815.07, 42,334,521.01 and 18,766,152.19

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Solution

The fourth proportional to 30,686,815.07, 42,334,521.01 and 18,766,152.19 is: 25,889,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,686,815.07 : 42,334,521.01 = 18,766,152.19 : x
  2. Step 2: Convert to fraction form
    30,686,815.07/42,334,521.01 = 18,766,152.19/x
  3. Step 3: Cross multiply
    30,686,815.07x = 42,334,521.01 × 18,766,152.19
  4. Step 4: Simplify right side
    30,686,815.07x = 794,456,064,170,415.25
  5. Step 5: Solve for x
    x = 794,456,064,170,415.25/30,686,815.07
  6. Step 6: Final answer
    x = 25,889,166.48

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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.