Home / 12,918,700.40-19,377,406.64-4,831,081.44

Finding the Fourth Proportional to 12,918,700.40, 19,377,406.64 and 4,831,081.44

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Solution

The fourth proportional to 12,918,700.40, 19,377,406.64 and 4,831,081.44 is: 7,246,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,700.40 : 19,377,406.64 = 4,831,081.44 : x
  2. Step 2: Convert to fraction form
    12,918,700.40/19,377,406.64 = 4,831,081.44/x
  3. Step 3: Cross multiply
    12,918,700.40x = 19,377,406.64 × 4,831,081.44
  4. Step 4: Simplify right side
    12,918,700.40x = 93,613,829,573,836.77
  5. Step 5: Solve for x
    x = 93,613,829,573,836.77/12,918,700.40
  6. Step 6: Final answer
    x = 7,246,381.34

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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.