Home / 278,729,460.48-384,636,602.24-153,280,600.32

Finding the Fourth Proportional to 278,729,460.48, 384,636,602.24 and 153,280,600.32

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Solution

The fourth proportional to 278,729,460.48, 384,636,602.24 and 153,280,600.32 is: 211,521,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,729,460.48 : 384,636,602.24 = 153,280,600.32 : x
  2. Step 2: Convert to fraction form
    278,729,460.48/384,636,602.24 = 153,280,600.32/x
  3. Step 3: Cross multiply
    278,729,460.48x = 384,636,602.24 × 153,280,600.32
  4. Step 4: Simplify right side
    278,729,460.48x = 58,957,329,296,392,256
  5. Step 5: Solve for x
    x = 58,957,329,296,392,256/278,729,460.48
  6. Step 6: Final answer
    x = 211,521,699.91

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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.