Home / 389,671,724.35-537,747,080.61-213,465,983.84

Finding the Fourth Proportional to 389,671,724.35, 537,747,080.61 and 213,465,983.84

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Solution

The fourth proportional to 389,671,724.35, 537,747,080.61 and 213,465,983.84 is: 294,583,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,671,724.35 : 537,747,080.61 = 213,465,983.84 : x
  2. Step 2: Convert to fraction form
    389,671,724.35/537,747,080.61 = 213,465,983.84/x
  3. Step 3: Cross multiply
    389,671,724.35x = 537,747,080.61 × 213,465,983.84
  4. Step 4: Simplify right side
    389,671,724.35x = 114,790,709,619,501,440
  5. Step 5: Solve for x
    x = 114,790,709,619,501,440/389,671,724.35
  6. Step 6: Final answer
    x = 294,583,113.03

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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.