Home / 191,852,394.20-287,715,605.70-70,668,099.80

Finding the Fourth Proportional to 191,852,394.20, 287,715,605.70 and 70,668,099.80

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Solution

The fourth proportional to 191,852,394.20, 287,715,605.70 and 70,668,099.80 is: 105,978,949.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,852,394.20 : 287,715,605.70 = 70,668,099.80 : x
  2. Step 2: Convert to fraction form
    191,852,394.20/287,715,605.70 = 70,668,099.80/x
  3. Step 3: Cross multiply
    191,852,394.20x = 287,715,605.70 × 70,668,099.80
  4. Step 4: Simplify right side
    191,852,394.20x = 20,332,315,137,625,048
  5. Step 5: Solve for x
    x = 20,332,315,137,625,048/191,852,394.20
  6. Step 6: Final answer
    x = 105,978,949.19

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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.