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Finding the Fourth Proportional to 697,862,430.09, 963,050,305.20 and 380,322,751.26

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Solution

The fourth proportional to 697,862,430.09, 963,050,305.20 and 380,322,751.26 is: 524,845,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,862,430.09 : 963,050,305.20 = 380,322,751.26 : x
  2. Step 2: Convert to fraction form
    697,862,430.09/963,050,305.20 = 380,322,751.26/x
  3. Step 3: Cross multiply
    697,862,430.09x = 963,050,305.20 × 380,322,751.26
  4. Step 4: Simplify right side
    697,862,430.09x = 366,269,941,675,446,720
  5. Step 5: Solve for x
    x = 366,269,941,675,446,720/697,862,430.09
  6. Step 6: Final answer
    x = 524,845,479.40

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Why These Related Problems?

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