Home / 254,920,691.88-380,929,842.95-191,408,688.54

Finding the Fourth Proportional to 254,920,691.88, 380,929,842.95 and 191,408,688.54

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Solution

The fourth proportional to 254,920,691.88, 380,929,842.95 and 191,408,688.54 is: 286,023,394.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,920,691.88 : 380,929,842.95 = 191,408,688.54 : x
  2. Step 2: Convert to fraction form
    254,920,691.88/380,929,842.95 = 191,408,688.54/x
  3. Step 3: Cross multiply
    254,920,691.88x = 380,929,842.95 × 191,408,688.54
  4. Step 4: Simplify right side
    254,920,691.88x = 72,913,281,663,850,624
  5. Step 5: Solve for x
    x = 72,913,281,663,850,624/254,920,691.88
  6. Step 6: Final answer
    x = 286,023,394.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.