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Finding the Fourth Proportional to 650,791,636.88, 898,089,392.04 and 353,431,798.16

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Solution

The fourth proportional to 650,791,636.88, 898,089,392.04 and 353,431,798.16 is: 487,734,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,791,636.88 : 898,089,392.04 = 353,431,798.16 : x
  2. Step 2: Convert to fraction form
    650,791,636.88/898,089,392.04 = 353,431,798.16/x
  3. Step 3: Cross multiply
    650,791,636.88x = 898,089,392.04 × 353,431,798.16
  4. Step 4: Simplify right side
    650,791,636.88x = 317,413,348,737,118,400
  5. Step 5: Solve for x
    x = 317,413,348,737,118,400/650,791,636.88
  6. Step 6: Final answer
    x = 487,734,215.91

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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.