Home / 142,808,867.64-197,080,394.40-80,927,148.60

Finding the Fourth Proportional to 142,808,867.64, 197,080,394.40 and 80,927,148.60

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Solution

The fourth proportional to 142,808,867.64, 197,080,394.40 and 80,927,148.60 is: 111,681,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,808,867.64 : 197,080,394.40 = 80,927,148.60 : x
  2. Step 2: Convert to fraction form
    142,808,867.64/197,080,394.40 = 80,927,148.60/x
  3. Step 3: Cross multiply
    142,808,867.64x = 197,080,394.40 × 80,927,148.60
  4. Step 4: Simplify right side
    142,808,867.64x = 15,949,154,363,755,408
  5. Step 5: Solve for x
    x = 15,949,154,363,755,408/142,808,867.64
  6. Step 6: Final answer
    x = 111,681,820.80

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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.