Home / 30,439,143.40-41,983,762.98-19,433,459.56

Finding the Fourth Proportional to 30,439,143.40, 41,983,762.98 and 19,433,459.56

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Solution

The fourth proportional to 30,439,143.40, 41,983,762.98 and 19,433,459.56 is: 26,803,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439,143.40 : 41,983,762.98 = 19,433,459.56 : x
  2. Step 2: Convert to fraction form
    30,439,143.40/41,983,762.98 = 19,433,459.56/x
  3. Step 3: Cross multiply
    30,439,143.40x = 41,983,762.98 × 19,433,459.56
  4. Step 4: Simplify right side
    30,439,143.40x = 815,889,760,048,455
  5. Step 5: Solve for x
    x = 815,889,760,048,455/30,439,143.40
  6. Step 6: Final answer
    x = 26,803,965.85

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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.