Home / 406,355,730.54-609,788,687.48-380,208,833.34

Finding the Fourth Proportional to 406,355,730.54, 609,788,687.48 and 380,208,833.34

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Solution

The fourth proportional to 406,355,730.54, 609,788,687.48 and 380,208,833.34 is: 570,551,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,355,730.54 : 609,788,687.48 = 380,208,833.34 : x
  2. Step 2: Convert to fraction form
    406,355,730.54/609,788,687.48 = 380,208,833.34/x
  3. Step 3: Cross multiply
    406,355,730.54x = 609,788,687.48 × 380,208,833.34
  4. Step 4: Simplify right side
    406,355,730.54x = 231,847,045,450,700,640
  5. Step 5: Solve for x
    x = 231,847,045,450,700,640/406,355,730.54
  6. Step 6: Final answer
    x = 570,551,927.85

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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.