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Finding the Fourth Proportional to 289,634,689.80, 434,452,034.70 and 167,190,683.40

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Solution

The fourth proportional to 289,634,689.80, 434,452,034.70 and 167,190,683.40 is: 250,786,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,634,689.80 : 434,452,034.70 = 167,190,683.40 : x
  2. Step 2: Convert to fraction form
    289,634,689.80/434,452,034.70 = 167,190,683.40/x
  3. Step 3: Cross multiply
    289,634,689.80x = 434,452,034.70 × 167,190,683.40
  4. Step 4: Simplify right side
    289,634,689.80x = 72,636,332,586,013,520
  5. Step 5: Solve for x
    x = 72,636,332,586,013,520/289,634,689.80
  6. Step 6: Final answer
    x = 250,786,025.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.