Home / 15,316,433.47-21,136,677.74-8,440,915.53

Finding the Fourth Proportional to 15,316,433.47, 21,136,677.74 and 8,440,915.53

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Solution

The fourth proportional to 15,316,433.47, 21,136,677.74 and 8,440,915.53 is: 11,648,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,433.47 : 21,136,677.74 = 8,440,915.53 : x
  2. Step 2: Convert to fraction form
    15,316,433.47/21,136,677.74 = 8,440,915.53/x
  3. Step 3: Cross multiply
    15,316,433.47x = 21,136,677.74 × 8,440,915.53
  4. Step 4: Simplify right side
    15,316,433.47x = 178,412,911,456,882.69
  5. Step 5: Solve for x
    x = 178,412,911,456,882.69/15,316,433.47
  6. Step 6: Final answer
    x = 11,648,463.19

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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.