Home / 139,913,373.67-209,896,960.30-53,645,051.86

Finding the Fourth Proportional to 139,913,373.67, 209,896,960.30 and 53,645,051.86

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Solution

The fourth proportional to 139,913,373.67, 209,896,960.30 and 53,645,051.86 is: 80,477,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,913,373.67 : 209,896,960.30 = 53,645,051.86 : x
  2. Step 2: Convert to fraction form
    139,913,373.67/209,896,960.30 = 53,645,051.86/x
  3. Step 3: Cross multiply
    139,913,373.67x = 209,896,960.30 × 53,645,051.86
  4. Step 4: Simplify right side
    139,913,373.67x = 11,259,933,319,891,008
  5. Step 5: Solve for x
    x = 11,259,933,319,891,008/139,913,373.67
  6. Step 6: Final answer
    x = 80,477,891.60

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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.