Home / 278,294,007.36-384,004,070.40-159,197,663.68

Finding the Fourth Proportional to 278,294,007.36, 384,004,070.40 and 159,197,663.68

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Solution

The fourth proportional to 278,294,007.36, 384,004,070.40 and 159,197,663.68 is: 219,668,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,294,007.36 : 384,004,070.40 = 159,197,663.68 : x
  2. Step 2: Convert to fraction form
    278,294,007.36/384,004,070.40 = 159,197,663.68/x
  3. Step 3: Cross multiply
    278,294,007.36x = 384,004,070.40 × 159,197,663.68
  4. Step 4: Simplify right side
    278,294,007.36x = 61,132,550,851,290,240
  5. Step 5: Solve for x
    x = 61,132,550,851,290,240/278,294,007.36
  6. Step 6: Final answer
    x = 219,668,944.48

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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.