Home / 389,369,494.02-537,329,927.95-213,157,489.37

Finding the Fourth Proportional to 389,369,494.02, 537,329,927.95 and 213,157,489.37

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Solution

The fourth proportional to 389,369,494.02, 537,329,927.95 and 213,157,489.37 is: 294,157,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,369,494.02 : 537,329,927.95 = 213,157,489.37 : x
  2. Step 2: Convert to fraction form
    389,369,494.02/537,329,927.95 = 213,157,489.37/x
  3. Step 3: Cross multiply
    389,369,494.02x = 537,329,927.95 × 213,157,489.37
  4. Step 4: Simplify right side
    389,369,494.02x = 114,535,898,405,185,008
  5. Step 5: Solve for x
    x = 114,535,898,405,185,008/389,369,494.02
  6. Step 6: Final answer
    x = 294,157,349.68

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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.