Home / 402,026,385.74-554,809,869-223,417,801.76

Finding the Fourth Proportional to 402,026,385.74, 554,809,869 and 223,417,801.76

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Solution

The fourth proportional to 402,026,385.74, 554,809,869 and 223,417,801.76 is: 308,324,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,026,385.74 : 554,809,869 = 223,417,801.76 : x
  2. Step 2: Convert to fraction form
    402,026,385.74/554,809,869 = 223,417,801.76/x
  3. Step 3: Cross multiply
    402,026,385.74x = 554,809,869 × 223,417,801.76
  4. Step 4: Simplify right side
    402,026,385.74x = 123,954,401,323,959,520
  5. Step 5: Solve for x
    x = 123,954,401,323,959,520/402,026,385.74
  6. Step 6: Final answer
    x = 308,324,044.70

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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.