Home / 163,728,065.40-245,592,098.10-81,859,579.35

Finding the Fourth Proportional to 163,728,065.40, 245,592,098.10 and 81,859,579.35

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Solution

The fourth proportional to 163,728,065.40, 245,592,098.10 and 81,859,579.35 is: 122,789,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,728,065.40 : 245,592,098.10 = 81,859,579.35 : x
  2. Step 2: Convert to fraction form
    163,728,065.40/245,592,098.10 = 81,859,579.35/x
  3. Step 3: Cross multiply
    163,728,065.40x = 245,592,098.10 × 81,859,579.35
  4. Step 4: Simplify right side
    163,728,065.40x = 20,104,065,842,149,932
  5. Step 5: Solve for x
    x = 20,104,065,842,149,932/163,728,065.40
  6. Step 6: Final answer
    x = 122,789,369.03

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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.