Home / 145,406,030.20-217,731,131.70-114,920,999.80

Finding the Fourth Proportional to 145,406,030.20, 217,731,131.70 and 114,920,999.80

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Solution

The fourth proportional to 145,406,030.20, 217,731,131.70 and 114,920,999.80 is: 172,082,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406,030.20 : 217,731,131.70 = 114,920,999.80 : x
  2. Step 2: Convert to fraction form
    145,406,030.20/217,731,131.70 = 114,920,999.80/x
  3. Step 3: Cross multiply
    145,406,030.20x = 217,731,131.70 × 114,920,999.80
  4. Step 4: Simplify right side
    145,406,030.20x = 25,021,879,342,549,472
  5. Step 5: Solve for x
    x = 25,021,879,342,549,472/145,406,030.20
  6. Step 6: Final answer
    x = 172,082,817.39

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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.