Home / 129,503,009,066.88-178,702,159,253.54-71,630,143,303.73

Finding the Fourth Proportional to 129,503,009,066.88, 178,702,159,253.54 and 71,630,143,303.73

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Solution

The fourth proportional to 129,503,009,066.88, 178,702,159,253.54 and 71,630,143,303.73 is: 98,842,964,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503,009,066.88 : 178,702,159,253.54 = 71,630,143,303.73 : x
  2. Step 2: Convert to fraction form
    129,503,009,066.88/178,702,159,253.54 = 71,630,143,303.73/x
  3. Step 3: Cross multiply
    129,503,009,066.88x = 178,702,159,253.54 × 71,630,143,303.73
  4. Step 4: Simplify right side
    129,503,009,066.88x = 12,800,461,276,017,764,335,616
  5. Step 5: Solve for x
    x = 12,800,461,276,017,764,335,616/129,503,009,066.88
  6. Step 6: Final answer
    x = 98,842,964,099.83

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1.5x scale

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.