Home / 21,343,948.81-29,454,615.28-11,554,390.40

Finding the Fourth Proportional to 21,343,948.81, 29,454,615.28 and 11,554,390.40

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Solution

The fourth proportional to 21,343,948.81, 29,454,615.28 and 11,554,390.40 is: 15,945,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343,948.81 : 29,454,615.28 = 11,554,390.40 : x
  2. Step 2: Convert to fraction form
    21,343,948.81/29,454,615.28 = 11,554,390.40/x
  3. Step 3: Cross multiply
    21,343,948.81x = 29,454,615.28 × 11,554,390.40
  4. Step 4: Simplify right side
    21,343,948.81x = 340,330,123,894,095.19
  5. Step 5: Solve for x
    x = 340,330,123,894,095.19/21,343,948.81
  6. Step 6: Final answer
    x = 15,945,040.30

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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.