Home / 31,931,684.42-47,927,808.12-19,764,342.74

Finding the Fourth Proportional to 31,931,684.42, 47,927,808.12 and 19,764,342.74

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Solution

The fourth proportional to 31,931,684.42, 47,927,808.12 and 19,764,342.74 is: 29,665,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,931,684.42 : 47,927,808.12 = 19,764,342.74 : x
  2. Step 2: Convert to fraction form
    31,931,684.42/47,927,808.12 = 19,764,342.74/x
  3. Step 3: Cross multiply
    31,931,684.42x = 47,927,808.12 × 19,764,342.74
  4. Step 4: Simplify right side
    31,931,684.42x = 947,261,626,460,634.88
  5. Step 5: Solve for x
    x = 947,261,626,460,634.88/31,931,684.42
  6. Step 6: Final answer
    x = 29,665,257.05

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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.