Home / 12,870,856.40-19,308,876.60-3,772,936.40

Finding the Fourth Proportional to 12,870,856.40, 19,308,876.60 and 3,772,936.40

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Solution

The fourth proportional to 12,870,856.40, 19,308,876.60 and 3,772,936.40 is: 5,660,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870,856.40 : 19,308,876.60 = 3,772,936.40 : x
  2. Step 2: Convert to fraction form
    12,870,856.40/19,308,876.60 = 3,772,936.40/x
  3. Step 3: Cross multiply
    12,870,856.40x = 19,308,876.60 × 3,772,936.40
  4. Step 4: Simplify right side
    12,870,856.40x = 72,851,163,367,248.25
  5. Step 5: Solve for x
    x = 72,851,163,367,248.25/12,870,856.40
  6. Step 6: Final answer
    x = 5,660,164.41

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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.