Home / 1,011,340,468.80-1,395,763,112.16-571,335,664.32

Finding the Fourth Proportional to 1,011,340,468.80, 1,395,763,112.16 and 571,335,664.32

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Solution

The fourth proportional to 1,011,340,468.80, 1,395,763,112.16 and 571,335,664.32 is: 788,507,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,340,468.80 : 1,395,763,112.16 = 571,335,664.32 : x
  2. Step 2: Convert to fraction form
    1,011,340,468.80/1,395,763,112.16 = 571,335,664.32/x
  3. Step 3: Cross multiply
    1,011,340,468.80x = 1,395,763,112.16 × 571,335,664.32
  4. Step 4: Simplify right side
    1,011,340,468.80x = 797,449,244,919,284,352
  5. Step 5: Solve for x
    x = 797,449,244,919,284,352/1,011,340,468.80
  6. Step 6: Final answer
    x = 788,507,203.58

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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.