Home / 12,990,927.40-19,489,155.90-4,016,386.60

Finding the Fourth Proportional to 12,990,927.40, 19,489,155.90 and 4,016,386.60

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Solution

The fourth proportional to 12,990,927.40, 19,489,155.90 and 4,016,386.60 is: 6,025,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,927.40 : 19,489,155.90 = 4,016,386.60 : x
  2. Step 2: Convert to fraction form
    12,990,927.40/19,489,155.90 = 4,016,386.60/x
  3. Step 3: Cross multiply
    12,990,927.40x = 19,489,155.90 × 4,016,386.60
  4. Step 4: Simplify right side
    12,990,927.40x = 78,275,984,602,070.94
  5. Step 5: Solve for x
    x = 78,275,984,602,070.94/12,990,927.40
  6. Step 6: Final answer
    x = 6,025,434.69

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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.