Home / 889,410,208.83-1,226,670,415.29-781,889,636.24

Finding the Fourth Proportional to 889,410,208.83, 1,226,670,415.29 and 781,889,636.24

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Solution

The fourth proportional to 889,410,208.83, 1,226,670,415.29 and 781,889,636.24 is: 1,078,378,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,410,208.83 : 1,226,670,415.29 = 781,889,636.24 : x
  2. Step 2: Convert to fraction form
    889,410,208.83/1,226,670,415.29 = 781,889,636.24/x
  3. Step 3: Cross multiply
    889,410,208.83x = 1,226,670,415.29 × 781,889,636.24
  4. Step 4: Simplify right side
    889,410,208.83x = 959,120,884,791,334,528
  5. Step 5: Solve for x
    x = 959,120,884,791,334,528/889,410,208.83
  6. Step 6: Final answer
    x = 1,078,378,542.62

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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.