Home / 389,369,494.52-537,329,928.64-213,157,489.87

Finding the Fourth Proportional to 389,369,494.52, 537,329,928.64 and 213,157,489.87

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Solution

The fourth proportional to 389,369,494.52, 537,329,928.64 and 213,157,489.87 is: 294,157,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,369,494.52 : 537,329,928.64 = 213,157,489.87 : x
  2. Step 2: Convert to fraction form
    389,369,494.52/537,329,928.64 = 213,157,489.87/x
  3. Step 3: Cross multiply
    389,369,494.52x = 537,329,928.64 × 213,157,489.87
  4. Step 4: Simplify right side
    389,369,494.52x = 114,535,898,820,928,624
  5. Step 5: Solve for x
    x = 114,535,898,820,928,624/389,369,494.52
  6. Step 6: Final answer
    x = 294,157,350.36

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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.