Home / 139,968,461.80-209,952,692.70-126,363,572.20

Finding the Fourth Proportional to 139,968,461.80, 209,952,692.70 and 126,363,572.20

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Solution

The fourth proportional to 139,968,461.80, 209,952,692.70 and 126,363,572.20 is: 189,545,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,461.80 : 209,952,692.70 = 126,363,572.20 : x
  2. Step 2: Convert to fraction form
    139,968,461.80/209,952,692.70 = 126,363,572.20/x
  3. Step 3: Cross multiply
    139,968,461.80x = 209,952,692.70 × 126,363,572.20
  4. Step 4: Simplify right side
    139,968,461.80x = 26,530,372,242,580,864
  5. Step 5: Solve for x
    x = 26,530,372,242,580,864/139,968,461.80
  6. Step 6: Final answer
    x = 189,545,358.30

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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.