Home / 15,404,547.81-21,258,940.28-8,529,029.88

Finding the Fourth Proportional to 15,404,547.81, 21,258,940.28 and 8,529,029.88

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Solution

The fourth proportional to 15,404,547.81, 21,258,940.28 and 8,529,029.88 is: 11,770,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404,547.81 : 21,258,940.28 = 8,529,029.88 : x
  2. Step 2: Convert to fraction form
    15,404,547.81/21,258,940.28 = 8,529,029.88/x
  3. Step 3: Cross multiply
    15,404,547.81x = 21,258,940.28 × 8,529,029.88
  4. Step 4: Simplify right side
    15,404,547.81x = 181,318,136,865,255.59
  5. Step 5: Solve for x
    x = 181,318,136,865,255.59/15,404,547.81
  6. Step 6: Final answer
    x = 11,770,429.04

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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.