Home / 102,689,915.19-154,084,695.48-45,174,713.10

Finding the Fourth Proportional to 102,689,915.19, 154,084,695.48 and 45,174,713.10

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Solution

The fourth proportional to 102,689,915.19, 154,084,695.48 and 45,174,713.10 is: 67,783,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,689,915.19 : 154,084,695.48 = 45,174,713.10 : x
  2. Step 2: Convert to fraction form
    102,689,915.19/154,084,695.48 = 45,174,713.10/x
  3. Step 3: Cross multiply
    102,689,915.19x = 154,084,695.48 × 45,174,713.10
  4. Step 4: Simplify right side
    102,689,915.19x = 6,960,731,911,409,867
  5. Step 5: Solve for x
    x = 6,960,731,911,409,867/102,689,915.19
  6. Step 6: Final answer
    x = 67,783,987.34

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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.