Home / 278,689,578.92-384,602,700.49-153,252,058.86

Finding the Fourth Proportional to 278,689,578.92, 384,602,700.49 and 153,252,058.86

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Solution

The fourth proportional to 278,689,578.92, 384,602,700.49 and 153,252,058.86 is: 211,493,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,689,578.92 : 384,602,700.49 = 153,252,058.86 : x
  2. Step 2: Convert to fraction form
    278,689,578.92/384,602,700.49 = 153,252,058.86/x
  3. Step 3: Cross multiply
    278,689,578.92x = 384,602,700.49 × 153,252,058.86
  4. Step 4: Simplify right side
    278,689,578.92x = 58,941,155,692,825,312
  5. Step 5: Solve for x
    x = 58,941,155,692,825,312/278,689,578.92
  6. Step 6: Final answer
    x = 211,493,935.02

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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.