Home / 1,520,790,684-2,098,331,290.08-860,740,981.44

Finding the Fourth Proportional to 1,520,790,684, 2,098,331,290.08 and 860,740,981.44

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Solution

The fourth proportional to 1,520,790,684, 2,098,331,290.08 and 860,740,981.44 is: 1,187,618,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,790,684 : 2,098,331,290.08 = 860,740,981.44 : x
  2. Step 2: Convert to fraction form
    1,520,790,684/2,098,331,290.08 = 860,740,981.44/x
  3. Step 3: Cross multiply
    1,520,790,684x = 2,098,331,290.08 × 860,740,981.44
  4. Step 4: Simplify right side
    1,520,790,684x = 1,806,119,734,009,720,576
  5. Step 5: Solve for x
    x = 1,806,119,734,009,720,576/1,520,790,684
  6. Step 6: Final answer
    x = 1,187,618,883.40

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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.