Home / 28,870,277.52-39,840,981.96-15,818,030.88

Finding the Fourth Proportional to 28,870,277.52, 39,840,981.96 and 15,818,030.88

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Solution

The fourth proportional to 28,870,277.52, 39,840,981.96 and 15,818,030.88 is: 21,828,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,277.52 : 39,840,981.96 = 15,818,030.88 : x
  2. Step 2: Convert to fraction form
    28,870,277.52/39,840,981.96 = 15,818,030.88/x
  3. Step 3: Cross multiply
    28,870,277.52x = 39,840,981.96 × 15,818,030.88
  4. Step 4: Simplify right side
    28,870,277.52x = 630,205,882,932,803
  5. Step 5: Solve for x
    x = 630,205,882,932,803/28,870,277.52
  6. Step 6: Final answer
    x = 21,828,882.06

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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.