Home / 278,176,071.27-383,863,775.49-154,407,005.31

Finding the Fourth Proportional to 278,176,071.27, 383,863,775.49 and 154,407,005.31

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Solution

The fourth proportional to 278,176,071.27, 383,863,775.49 and 154,407,005.31 is: 213,071,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,071.27 : 383,863,775.49 = 154,407,005.31 : x
  2. Step 2: Convert to fraction form
    278,176,071.27/383,863,775.49 = 154,407,005.31/x
  3. Step 3: Cross multiply
    278,176,071.27x = 383,863,775.49 × 154,407,005.31
  4. Step 4: Simplify right side
    278,176,071.27x = 59,271,256,020,401,080
  5. Step 5: Solve for x
    x = 59,271,256,020,401,080/278,176,071.27
  6. Step 6: Final answer
    x = 213,071,008.41

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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.