Home / 729,685,453.12-1,006,966,468.20-395,160,572.32

Finding the Fourth Proportional to 729,685,453.12, 1,006,966,468.20 and 395,160,572.32

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Solution

The fourth proportional to 729,685,453.12, 1,006,966,468.20 and 395,160,572.32 is: 545,321,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,685,453.12 : 1,006,966,468.20 = 395,160,572.32 : x
  2. Step 2: Convert to fraction form
    729,685,453.12/1,006,966,468.20 = 395,160,572.32/x
  3. Step 3: Cross multiply
    729,685,453.12x = 1,006,966,468.20 × 395,160,572.32
  4. Step 4: Simplify right side
    729,685,453.12x = 397,913,445,880,961,088
  5. Step 5: Solve for x
    x = 397,913,445,880,961,088/729,685,453.12
  6. Step 6: Final answer
    x = 545,321,883.81

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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.