Home / 142,438,989.64-196,565,805.70-77,248,893.64

Finding the Fourth Proportional to 142,438,989.64, 196,565,805.70 and 77,248,893.64

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Solution

The fourth proportional to 142,438,989.64, 196,565,805.70 and 77,248,893.64 is: 106,603,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,438,989.64 : 196,565,805.70 = 77,248,893.64 : x
  2. Step 2: Convert to fraction form
    142,438,989.64/196,565,805.70 = 77,248,893.64/x
  3. Step 3: Cross multiply
    142,438,989.64x = 196,565,805.70 × 77,248,893.64
  4. Step 4: Simplify right side
    142,438,989.64x = 15,184,491,017,624,618
  5. Step 5: Solve for x
    x = 15,184,491,017,624,618/142,438,989.64
  6. Step 6: Final answer
    x = 106,603,473.22

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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.