Home / 389,369,495.52-537,329,930.02-213,157,490.87

Finding the Fourth Proportional to 389,369,495.52, 537,329,930.02 and 213,157,490.87

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Solution

The fourth proportional to 389,369,495.52, 537,329,930.02 and 213,157,490.87 is: 294,157,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,369,495.52 : 537,329,930.02 = 213,157,490.87 : x
  2. Step 2: Convert to fraction form
    389,369,495.52/537,329,930.02 = 213,157,490.87/x
  3. Step 3: Cross multiply
    389,369,495.52x = 537,329,930.02 × 213,157,490.87
  4. Step 4: Simplify right side
    389,369,495.52x = 114,535,899,652,415,888
  5. Step 5: Solve for x
    x = 114,535,899,652,415,888/389,369,495.52
  6. Step 6: Final answer
    x = 294,157,351.74

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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.