Home / 28,155,985.14-38,855,259.48-15,278,929.14

Finding the Fourth Proportional to 28,155,985.14, 38,855,259.48 and 15,278,929.14

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Solution

The fourth proportional to 28,155,985.14, 38,855,259.48 and 15,278,929.14 is: 21,084,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155,985.14 : 38,855,259.48 = 15,278,929.14 : x
  2. Step 2: Convert to fraction form
    28,155,985.14/38,855,259.48 = 15,278,929.14/x
  3. Step 3: Cross multiply
    28,155,985.14x = 38,855,259.48 × 15,278,929.14
  4. Step 4: Simplify right side
    28,155,985.14x = 593,666,756,311,233.25
  5. Step 5: Solve for x
    x = 593,666,756,311,233.25/28,155,985.14
  6. Step 6: Final answer
    x = 21,084,922.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.