Home / 278,176,004.46-383,863,683.42-154,406,938.50

Finding the Fourth Proportional to 278,176,004.46, 383,863,683.42 and 154,406,938.50

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Solution

The fourth proportional to 278,176,004.46, 383,863,683.42 and 154,406,938.50 is: 213,070,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,004.46 : 383,863,683.42 = 154,406,938.50 : x
  2. Step 2: Convert to fraction form
    278,176,004.46/383,863,683.42 = 154,406,938.50/x
  3. Step 3: Cross multiply
    278,176,004.46x = 383,863,683.42 × 154,406,938.50
  4. Step 4: Simplify right side
    278,176,004.46x = 59,271,216,158,215,416
  5. Step 5: Solve for x
    x = 59,271,216,158,215,416/278,176,004.46
  6. Step 6: Final answer
    x = 213,070,916.28

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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.