Home / 15,316,119.81-21,136,688.25-8,441,044.74

Finding the Fourth Proportional to 15,316,119.81, 21,136,688.25 and 8,441,044.74

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Solution

The fourth proportional to 15,316,119.81, 21,136,688.25 and 8,441,044.74 is: 11,648,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,119.81 : 21,136,688.25 = 8,441,044.74 : x
  2. Step 2: Convert to fraction form
    15,316,119.81/21,136,688.25 = 8,441,044.74/x
  3. Step 3: Cross multiply
    15,316,119.81x = 21,136,688.25 × 8,441,044.74
  4. Step 4: Simplify right side
    15,316,119.81x = 178,415,731,173,682.31
  5. Step 5: Solve for x
    x = 178,415,731,173,682.31/15,316,119.81
  6. Step 6: Final answer
    x = 11,648,885.84

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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.