Home / 12,918,735.72-19,377,459.36-4,831,116.71

Finding the Fourth Proportional to 12,918,735.72, 19,377,459.36 and 4,831,116.71

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Solution

The fourth proportional to 12,918,735.72, 19,377,459.36 and 4,831,116.71 is: 7,246,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,735.72 : 19,377,459.36 = 4,831,116.71 : x
  2. Step 2: Convert to fraction form
    12,918,735.72/19,377,459.36 = 4,831,116.71/x
  3. Step 3: Cross multiply
    12,918,735.72x = 19,377,459.36 × 4,831,116.71
  4. Step 4: Simplify right side
    12,918,735.72x = 93,614,767,614,554.61
  5. Step 5: Solve for x
    x = 93,614,767,614,554.61/12,918,735.72
  6. Step 6: Final answer
    x = 7,246,434.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.