Home / 139,943,458.06-193,191,889.64-87,037,218.88

Finding the Fourth Proportional to 139,943,458.06, 193,191,889.64 and 87,037,218.88

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Solution

The fourth proportional to 139,943,458.06, 193,191,889.64 and 87,037,218.88 is: 120,154,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,943,458.06 : 193,191,889.64 = 87,037,218.88 : x
  2. Step 2: Convert to fraction form
    139,943,458.06/193,191,889.64 = 87,037,218.88/x
  3. Step 3: Cross multiply
    139,943,458.06x = 193,191,889.64 × 87,037,218.88
  4. Step 4: Simplify right side
    139,943,458.06x = 16,814,884,784,437,482
  5. Step 5: Solve for x
    x = 16,814,884,784,437,482/139,943,458.06
  6. Step 6: Final answer
    x = 120,154,846.95

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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.