Home / 742,303,458.63-1,113,914,988.44-431,557,325.82

Finding the Fourth Proportional to 742,303,458.63, 1,113,914,988.44 and 431,557,325.82

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Solution

The fourth proportional to 742,303,458.63, 1,113,914,988.44 and 431,557,325.82 is: 647,603,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,303,458.63 : 1,113,914,988.44 = 431,557,325.82 : x
  2. Step 2: Convert to fraction form
    742,303,458.63/1,113,914,988.44 = 431,557,325.82/x
  3. Step 3: Cross multiply
    742,303,458.63x = 1,113,914,988.44 × 431,557,325.82
  4. Step 4: Simplify right side
    742,303,458.63x = 480,718,173,594,255,232
  5. Step 5: Solve for x
    x = 480,718,173,594,255,232/742,303,458.63
  6. Step 6: Final answer
    x = 647,603,305.64

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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.