Home / 406,355,729.03-609,788,685.22-380,208,831.83

Finding the Fourth Proportional to 406,355,729.03, 609,788,685.22 and 380,208,831.83

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Solution

The fourth proportional to 406,355,729.03, 609,788,685.22 and 380,208,831.83 is: 570,551,925.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,355,729.03 : 609,788,685.22 = 380,208,831.83 : x
  2. Step 2: Convert to fraction form
    406,355,729.03/609,788,685.22 = 380,208,831.83/x
  3. Step 3: Cross multiply
    406,355,729.03x = 609,788,685.22 × 380,208,831.83
  4. Step 4: Simplify right side
    406,355,729.03x = 231,847,043,670,647,776
  5. Step 5: Solve for x
    x = 231,847,043,670,647,776/406,355,729.03
  6. Step 6: Final answer
    x = 570,551,925.59

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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.