Home / 139,943,452.31-193,191,881.69-87,037,213.13

Finding the Fourth Proportional to 139,943,452.31, 193,191,881.69 and 87,037,213.13

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Solution

The fourth proportional to 139,943,452.31, 193,191,881.69 and 87,037,213.13 is: 120,154,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,943,452.31 : 193,191,881.69 = 87,037,213.13 : x
  2. Step 2: Convert to fraction form
    139,943,452.31/193,191,881.69 = 87,037,213.13/x
  3. Step 3: Cross multiply
    139,943,452.31x = 193,191,881.69 × 87,037,213.13
  4. Step 4: Simplify right side
    139,943,452.31x = 16,814,882,980,889,908
  5. Step 5: Solve for x
    x = 16,814,882,980,889,908/139,943,452.31
  6. Step 6: Final answer
    x = 120,154,839.00

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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.