Home / 142,824,026.56-197,118,701.40-87,101,774.32

Finding the Fourth Proportional to 142,824,026.56, 197,118,701.40 and 87,101,774.32

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Solution

The fourth proportional to 142,824,026.56, 197,118,701.40 and 87,101,774.32 is: 120,213,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,824,026.56 : 197,118,701.40 = 87,101,774.32 : x
  2. Step 2: Convert to fraction form
    142,824,026.56/197,118,701.40 = 87,101,774.32/x
  3. Step 3: Cross multiply
    142,824,026.56x = 197,118,701.40 × 87,101,774.32
  4. Step 4: Simplify right side
    142,824,026.56x = 17,169,388,643,594,268
  5. Step 5: Solve for x
    x = 17,169,388,643,594,268/142,824,026.56
  6. Step 6: Final answer
    x = 120,213,587.71

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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.