Home / 129,503,009,077.02-178,702,159,267.50-71,630,143,313.85

Finding the Fourth Proportional to 129,503,009,077.02, 178,702,159,267.50 and 71,630,143,313.85

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Solution

The fourth proportional to 129,503,009,077.02, 178,702,159,267.50 and 71,630,143,313.85 is: 98,842,964,113.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503,009,077.02 : 178,702,159,267.50 = 71,630,143,313.85 : x
  2. Step 2: Convert to fraction form
    129,503,009,077.02/178,702,159,267.50 = 71,630,143,313.85/x
  3. Step 3: Cross multiply
    129,503,009,077.02x = 178,702,159,267.50 × 71,630,143,313.85
  4. Step 4: Simplify right side
    129,503,009,077.02x = 12,800,461,278,825,473,376,256
  5. Step 5: Solve for x
    x = 12,800,461,278,825,473,376,256/129,503,009,077.02
  6. Step 6: Final answer
    x = 98,842,964,113.77

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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.