Home / 139,328,298.60-192,276,750.96-76,607,041.56

Finding the Fourth Proportional to 139,328,298.60, 192,276,750.96 and 76,607,041.56

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Solution

The fourth proportional to 139,328,298.60, 192,276,750.96 and 76,607,041.56 is: 105,719,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,328,298.60 : 192,276,750.96 = 76,607,041.56 : x
  2. Step 2: Convert to fraction form
    139,328,298.60/192,276,750.96 = 76,607,041.56/x
  3. Step 3: Cross multiply
    139,328,298.60x = 192,276,750.96 × 76,607,041.56
  4. Step 4: Simplify right side
    139,328,298.60x = 14,729,753,051,814,490
  5. Step 5: Solve for x
    x = 14,729,753,051,814,490/139,328,298.60
  6. Step 6: Final answer
    x = 105,719,751.12

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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.