Home / 287,757,478.50-431,450,628.06-112,898,184.42

Finding the Fourth Proportional to 287,757,478.50, 431,450,628.06 and 112,898,184.42

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Solution

The fourth proportional to 287,757,478.50, 431,450,628.06 and 112,898,184.42 is: 169,274,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,757,478.50 : 431,450,628.06 = 112,898,184.42 : x
  2. Step 2: Convert to fraction form
    287,757,478.50/431,450,628.06 = 112,898,184.42/x
  3. Step 3: Cross multiply
    287,757,478.50x = 431,450,628.06 × 112,898,184.42
  4. Step 4: Simplify right side
    287,757,478.50x = 48,709,992,574,842,704
  5. Step 5: Solve for x
    x = 48,709,992,574,842,704/287,757,478.50
  6. Step 6: Final answer
    x = 169,274,462.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.