Home / 103,128,658.40-154,690,740.44-48,510,970.20

Finding the Fourth Proportional to 103,128,658.40, 154,690,740.44 and 48,510,970.20

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Solution

The fourth proportional to 103,128,658.40, 154,690,740.44 and 48,510,970.20 is: 72,765,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,128,658.40 : 154,690,740.44 = 48,510,970.20 : x
  2. Step 2: Convert to fraction form
    103,128,658.40/154,690,740.44 = 48,510,970.20/x
  3. Step 3: Cross multiply
    103,128,658.40x = 154,690,740.44 × 48,510,970.20
  4. Step 4: Simplify right side
    103,128,658.40x = 7,504,197,899,700,775
  5. Step 5: Solve for x
    x = 7,504,197,899,700,775/103,128,658.40
  6. Step 6: Final answer
    x = 72,765,398.25

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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.