Home / 28,389,820.80-42,595,228.80-9,221,203.20

Finding the Fourth Proportional to 28,389,820.80, 42,595,228.80 and 9,221,203.20

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Solution

The fourth proportional to 28,389,820.80, 42,595,228.80 and 9,221,203.20 is: 13,835,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389,820.80 : 42,595,228.80 = 9,221,203.20 : x
  2. Step 2: Convert to fraction form
    28,389,820.80/42,595,228.80 = 9,221,203.20/x
  3. Step 3: Cross multiply
    28,389,820.80x = 42,595,228.80 × 9,221,203.20
  4. Step 4: Simplify right side
    28,389,820.80x = 392,779,260,115,292.12
  5. Step 5: Solve for x
    x = 392,779,260,115,292.12/28,389,820.80
  6. Step 6: Final answer
    x = 13,835,214.49

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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.