Home / 527,623,623.69-791,442,171.04-139,443,100.25

Finding the Fourth Proportional to 527,623,623.69, 791,442,171.04 and 139,443,100.25

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Solution

The fourth proportional to 527,623,623.69, 791,442,171.04 and 139,443,100.25 is: 209,166,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,623,623.69 : 791,442,171.04 = 139,443,100.25 : x
  2. Step 2: Convert to fraction form
    527,623,623.69/791,442,171.04 = 139,443,100.25/x
  3. Step 3: Cross multiply
    527,623,623.69x = 791,442,171.04 × 139,443,100.25
  4. Step 4: Simplify right side
    527,623,623.69x = 110,361,149,998,408,368
  5. Step 5: Solve for x
    x = 110,361,149,998,408,368/527,623,623.69
  6. Step 6: Final answer
    x = 209,166,430.47

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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.