Home / 124,401,906.13-171,653,372.81-72,178,970.53

Finding the Fourth Proportional to 124,401,906.13, 171,653,372.81 and 72,178,970.53

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Solution

The fourth proportional to 124,401,906.13, 171,653,372.81 and 72,178,970.53 is: 99,594,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,401,906.13 : 171,653,372.81 = 72,178,970.53 : x
  2. Step 2: Convert to fraction form
    124,401,906.13/171,653,372.81 = 72,178,970.53/x
  3. Step 3: Cross multiply
    124,401,906.13x = 171,653,372.81 × 72,178,970.53
  4. Step 4: Simplify right side
    124,401,906.13x = 12,389,763,736,750,274
  5. Step 5: Solve for x
    x = 12,389,763,736,750,274/124,401,906.13
  6. Step 6: Final answer
    x = 99,594,645.47

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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.