Home / 389,943,981.48-538,180,450.20-246,903,040.02

Finding the Fourth Proportional to 389,943,981.48, 538,180,450.20 and 246,903,040.02

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Solution

The fourth proportional to 389,943,981.48, 538,180,450.20 and 246,903,040.02 is: 340,762,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,943,981.48 : 538,180,450.20 = 246,903,040.02 : x
  2. Step 2: Convert to fraction form
    389,943,981.48/538,180,450.20 = 246,903,040.02/x
  3. Step 3: Cross multiply
    389,943,981.48x = 538,180,450.20 × 246,903,040.02
  4. Step 4: Simplify right side
    389,943,981.48x = 132,878,389,233,712,240
  5. Step 5: Solve for x
    x = 132,878,389,233,712,240/389,943,981.48
  6. Step 6: Final answer
    x = 340,762,764.77

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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.