Home / 763,818,329.96-1,054,078,783.61-462,399,650.39

Finding the Fourth Proportional to 763,818,329.96, 1,054,078,783.61 and 462,399,650.39

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Solution

The fourth proportional to 763,818,329.96, 1,054,078,783.61 and 462,399,650.39 is: 638,117,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,818,329.96 : 1,054,078,783.61 = 462,399,650.39 : x
  2. Step 2: Convert to fraction form
    763,818,329.96/1,054,078,783.61 = 462,399,650.39/x
  3. Step 3: Cross multiply
    763,818,329.96x = 1,054,078,783.61 × 462,399,650.39
  4. Step 4: Simplify right side
    763,818,329.96x = 487,405,661,017,198,080
  5. Step 5: Solve for x
    x = 487,405,661,017,198,080/763,818,329.96
  6. Step 6: Final answer
    x = 638,117,261.53

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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.