Home / 19,411,216.40-29,102,827.80-12,683,421.20

Finding the Fourth Proportional to 19,411,216.40, 29,102,827.80 and 12,683,421.20

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Solution

The fourth proportional to 19,411,216.40, 29,102,827.80 and 12,683,421.20 is: 19,015,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411,216.40 : 29,102,827.80 = 12,683,421.20 : x
  2. Step 2: Convert to fraction form
    19,411,216.40/29,102,827.80 = 12,683,421.20/x
  3. Step 3: Cross multiply
    19,411,216.40x = 29,102,827.80 × 12,683,421.20
  4. Step 4: Simplify right side
    19,411,216.40x = 369,123,423,098,469.38
  5. Step 5: Solve for x
    x = 369,123,423,098,469.38/19,411,216.40
  6. Step 6: Final answer
    x = 19,015,986.20

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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.