Home / 28,512,982.80-42,779,971.80-9,344,365.20

Finding the Fourth Proportional to 28,512,982.80, 42,779,971.80 and 9,344,365.20

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Solution

The fourth proportional to 28,512,982.80, 42,779,971.80 and 9,344,365.20 is: 14,019,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,982.80 : 42,779,971.80 = 9,344,365.20 : x
  2. Step 2: Convert to fraction form
    28,512,982.80/42,779,971.80 = 9,344,365.20/x
  3. Step 3: Cross multiply
    28,512,982.80x = 42,779,971.80 × 9,344,365.20
  4. Step 4: Simplify right side
    28,512,982.80x = 399,751,679,744,901.31
  5. Step 5: Solve for x
    x = 399,751,679,744,901.31/28,512,982.80
  6. Step 6: Final answer
    x = 14,019,988.11

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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.