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Finding the Fourth Proportional to 693,430,409.85, 956,933,735.30 and 380,157,897.77

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Solution

The fourth proportional to 693,430,409.85, 956,933,735.30 and 380,157,897.77 is: 524,617,772.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,430,409.85 : 956,933,735.30 = 380,157,897.77 : x
  2. Step 2: Convert to fraction form
    693,430,409.85/956,933,735.30 = 380,157,897.77/x
  3. Step 3: Cross multiply
    693,430,409.85x = 956,933,735.30 × 380,157,897.77
  4. Step 4: Simplify right side
    693,430,409.85x = 363,785,917,116,841,600
  5. Step 5: Solve for x
    x = 363,785,917,116,841,600/693,430,409.85
  6. Step 6: Final answer
    x = 524,617,772.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.