Home / 103,128,655.39-154,690,735.93-48,510,967.21

Finding the Fourth Proportional to 103,128,655.39, 154,690,735.93 and 48,510,967.21

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Solution

The fourth proportional to 103,128,655.39, 154,690,735.93 and 48,510,967.21 is: 72,765,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,128,655.39 : 154,690,735.93 = 48,510,967.21 : x
  2. Step 2: Convert to fraction form
    103,128,655.39/154,690,735.93 = 48,510,967.21/x
  3. Step 3: Cross multiply
    103,128,655.39x = 154,690,735.93 × 48,510,967.21
  4. Step 4: Simplify right side
    103,128,655.39x = 7,504,197,218,390,999
  5. Step 5: Solve for x
    x = 7,504,197,218,390,999/103,128,655.39
  6. Step 6: Final answer
    x = 72,765,393.77

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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.