Home / 103,314,393.12-142,573,858.08-56,904,648.32

Finding the Fourth Proportional to 103,314,393.12, 142,573,858.08 and 56,904,648.32

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Solution

The fourth proportional to 103,314,393.12, 142,573,858.08 and 56,904,648.32 is: 78,528,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,314,393.12 : 142,573,858.08 = 56,904,648.32 : x
  2. Step 2: Convert to fraction form
    103,314,393.12/142,573,858.08 = 56,904,648.32/x
  3. Step 3: Cross multiply
    103,314,393.12x = 142,573,858.08 × 56,904,648.32
  4. Step 4: Simplify right side
    103,314,393.12x = 8,113,115,253,667,991
  5. Step 5: Solve for x
    x = 8,113,115,253,667,991/103,314,393.12
  6. Step 6: Final answer
    x = 78,528,412.24

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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.