Home / 138,137,818.34-190,630,798.18-76,258,665.38

Finding the Fourth Proportional to 138,137,818.34, 190,630,798.18 and 76,258,665.38

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Solution

The fourth proportional to 138,137,818.34, 190,630,798.18 and 76,258,665.38 is: 105,237,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137,818.34 : 190,630,798.18 = 76,258,665.38 : x
  2. Step 2: Convert to fraction form
    138,137,818.34/190,630,798.18 = 76,258,665.38/x
  3. Step 3: Cross multiply
    138,137,818.34x = 190,630,798.18 × 76,258,665.38
  4. Step 4: Simplify right side
    138,137,818.34x = 14,537,250,249,530,932
  5. Step 5: Solve for x
    x = 14,537,250,249,530,932/138,137,818.34
  6. Step 6: Final answer
    x = 105,237,294.35

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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.