Home / 139,973,430.30-209,960,145.45-54,872,886.30

Finding the Fourth Proportional to 139,973,430.30, 209,960,145.45 and 54,872,886.30

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Solution

The fourth proportional to 139,973,430.30, 209,960,145.45 and 54,872,886.30 is: 82,309,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973,430.30 : 209,960,145.45 = 54,872,886.30 : x
  2. Step 2: Convert to fraction form
    139,973,430.30/209,960,145.45 = 54,872,886.30/x
  3. Step 3: Cross multiply
    139,973,430.30x = 209,960,145.45 × 54,872,886.30
  4. Step 4: Simplify right side
    139,973,430.30x = 11,521,119,188,809,312
  5. Step 5: Solve for x
    x = 11,521,119,188,809,312/139,973,430.30
  6. Step 6: Final answer
    x = 82,309,329.45

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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.