Home / 30,783,677.84-42,462,966.06-20,329,790.48

Finding the Fourth Proportional to 30,783,677.84, 42,462,966.06 and 20,329,790.48

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Solution

The fourth proportional to 30,783,677.84, 42,462,966.06 and 20,329,790.48 is: 28,042,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783,677.84 : 42,462,966.06 = 20,329,790.48 : x
  2. Step 2: Convert to fraction form
    30,783,677.84/42,462,966.06 = 20,329,790.48/x
  3. Step 3: Cross multiply
    30,783,677.84x = 42,462,966.06 × 20,329,790.48
  4. Step 4: Simplify right side
    30,783,677.84x = 863,263,203,159,151.12
  5. Step 5: Solve for x
    x = 863,263,203,159,151.12/30,783,677.84
  6. Step 6: Final answer
    x = 28,042,887.13

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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.