Home / 20,402,966.88-28,153,950.23-11,579,611.97

Finding the Fourth Proportional to 20,402,966.88, 28,153,950.23 and 11,579,611.97

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Solution

The fourth proportional to 20,402,966.88, 28,153,950.23 and 11,579,611.97 is: 15,978,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,966.88 : 28,153,950.23 = 11,579,611.97 : x
  2. Step 2: Convert to fraction form
    20,402,966.88/28,153,950.23 = 11,579,611.97/x
  3. Step 3: Cross multiply
    20,402,966.88x = 28,153,950.23 × 11,579,611.97
  4. Step 4: Simplify right side
    20,402,966.88x = 326,011,819,185,426.19
  5. Step 5: Solve for x
    x = 326,011,819,185,426.19/20,402,966.88
  6. Step 6: Final answer
    x = 15,978,647.67

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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.