Home / 202,630,913.95-279,630,900.32-109,811,421.79

Finding the Fourth Proportional to 202,630,913.95, 279,630,900.32 and 109,811,421.79

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Solution

The fourth proportional to 202,630,913.95, 279,630,900.32 and 109,811,421.79 is: 151,539,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,630,913.95 : 279,630,900.32 = 109,811,421.79 : x
  2. Step 2: Convert to fraction form
    202,630,913.95/279,630,900.32 = 109,811,421.79/x
  3. Step 3: Cross multiply
    202,630,913.95x = 279,630,900.32 × 109,811,421.79
  4. Step 4: Simplify right side
    202,630,913.95x = 30,706,666,740,357,448
  5. Step 5: Solve for x
    x = 30,706,666,740,357,448/202,630,913.95
  6. Step 6: Final answer
    x = 151,539,891.63

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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.