Home / 28,383,513.60-42,526,281.60-13,206,316.80

Finding the Fourth Proportional to 28,383,513.60, 42,526,281.60 and 13,206,316.80

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Solution

The fourth proportional to 28,383,513.60, 42,526,281.60 and 13,206,316.80 is: 19,786,681.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383,513.60 : 42,526,281.60 = 13,206,316.80 : x
  2. Step 2: Convert to fraction form
    28,383,513.60/42,526,281.60 = 13,206,316.80/x
  3. Step 3: Cross multiply
    28,383,513.60x = 42,526,281.60 × 13,206,316.80
  4. Step 4: Simplify right side
    28,383,513.60x = 561,615,547,135,610.94
  5. Step 5: Solve for x
    x = 561,615,547,135,610.94/28,383,513.60
  6. Step 6: Final answer
    x = 19,786,681.63

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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.