Home / 15,307,320.30-21,124,103.16-8,431,802.36

Finding the Fourth Proportional to 15,307,320.30, 21,124,103.16 and 8,431,802.36

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Solution

The fourth proportional to 15,307,320.30, 21,124,103.16 and 8,431,802.36 is: 11,635,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307,320.30 : 21,124,103.16 = 8,431,802.36 : x
  2. Step 2: Convert to fraction form
    15,307,320.30/21,124,103.16 = 8,431,802.36/x
  3. Step 3: Cross multiply
    15,307,320.30x = 21,124,103.16 × 8,431,802.36
  4. Step 4: Simplify right side
    15,307,320.30x = 178,114,262,882,585.59
  5. Step 5: Solve for x
    x = 178,114,262,882,585.59/15,307,320.30
  6. Step 6: Final answer
    x = 11,635,887.89

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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.