Home / 103,066,067.12-142,232,172.52-56,023,347.28

Finding the Fourth Proportional to 103,066,067.12, 142,232,172.52 and 56,023,347.28

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Solution

The fourth proportional to 103,066,067.12, 142,232,172.52 and 56,023,347.28 is: 77,312,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066,067.12 : 142,232,172.52 = 56,023,347.28 : x
  2. Step 2: Convert to fraction form
    103,066,067.12/142,232,172.52 = 56,023,347.28/x
  3. Step 3: Cross multiply
    103,066,067.12x = 142,232,172.52 × 56,023,347.28
  4. Step 4: Simplify right side
    103,066,067.12x = 7,968,322,395,476,834
  5. Step 5: Solve for x
    x = 7,968,322,395,476,834/103,066,067.12
  6. Step 6: Final answer
    x = 77,312,762.76

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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.