Home / 21,143,788-29,175,952-12,440,046.40

Finding the Fourth Proportional to 21,143,788, 29,175,952 and 12,440,046.40

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Solution

The fourth proportional to 21,143,788, 29,175,952 and 12,440,046.40 is: 17,165,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,788 : 29,175,952 = 12,440,046.40 : x
  2. Step 2: Convert to fraction form
    21,143,788/29,175,952 = 12,440,046.40/x
  3. Step 3: Cross multiply
    21,143,788x = 29,175,952 × 12,440,046.40
  4. Step 4: Simplify right side
    21,143,788x = 362,950,196,644,172.81
  5. Step 5: Solve for x
    x = 362,950,196,644,172.81/21,143,788
  6. Step 6: Final answer
    x = 17,165,807.60

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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.