Home / 12,658,653.70-18,988,498.95-3,683,205.70

Finding the Fourth Proportional to 12,658,653.70, 18,988,498.95 and 3,683,205.70

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Solution

The fourth proportional to 12,658,653.70, 18,988,498.95 and 3,683,205.70 is: 5,524,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,653.70 : 18,988,498.95 = 3,683,205.70 : x
  2. Step 2: Convert to fraction form
    12,658,653.70/18,988,498.95 = 3,683,205.70/x
  3. Step 3: Cross multiply
    12,658,653.70x = 18,988,498.95 × 3,683,205.70
  4. Step 4: Simplify right side
    12,658,653.70x = 69,938,547,567,084.02
  5. Step 5: Solve for x
    x = 69,938,547,567,084.02/12,658,653.70
  6. Step 6: Final answer
    x = 5,524,959.39

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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.