Home / 507,020,540.33-699,692,453.88-280,963,300.01

Finding the Fourth Proportional to 507,020,540.33, 699,692,453.88 and 280,963,300.01

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Solution

The fourth proportional to 507,020,540.33, 699,692,453.88 and 280,963,300.01 is: 387,731,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,020,540.33 : 699,692,453.88 = 280,963,300.01 : x
  2. Step 2: Convert to fraction form
    507,020,540.33/699,692,453.88 = 280,963,300.01/x
  3. Step 3: Cross multiply
    507,020,540.33x = 699,692,453.88 × 280,963,300.01
  4. Step 4: Simplify right side
    507,020,540.33x = 196,587,900,834,219,520
  5. Step 5: Solve for x
    x = 196,587,900,834,219,520/507,020,540.33
  6. Step 6: Final answer
    x = 387,731,630.57

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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.