Home / 138,137,262.84-190,630,031.85-76,258,109.88

Finding the Fourth Proportional to 138,137,262.84, 190,630,031.85 and 76,258,109.88

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Solution

The fourth proportional to 138,137,262.84, 190,630,031.85 and 76,258,109.88 is: 105,236,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137,262.84 : 190,630,031.85 = 76,258,109.88 : x
  2. Step 2: Convert to fraction form
    138,137,262.84/190,630,031.85 = 76,258,109.88/x
  3. Step 3: Cross multiply
    138,137,262.84x = 190,630,031.85 × 76,258,109.88
  4. Step 4: Simplify right side
    138,137,262.84x = 14,537,085,915,245,198
  5. Step 5: Solve for x
    x = 14,537,085,915,245,198/138,137,262.84
  6. Step 6: Final answer
    x = 105,236,527.90

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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.