Home / 20,019,878.63-30,032,179.89-15,003,075.59

Finding the Fourth Proportional to 20,019,878.63, 30,032,179.89 and 15,003,075.59

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Solution

The fourth proportional to 20,019,878.63, 30,032,179.89 and 15,003,075.59 is: 22,506,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,878.63 : 30,032,179.89 = 15,003,075.59 : x
  2. Step 2: Convert to fraction form
    20,019,878.63/30,032,179.89 = 15,003,075.59/x
  3. Step 3: Cross multiply
    20,019,878.63x = 30,032,179.89 × 15,003,075.59
  4. Step 4: Simplify right side
    20,019,878.63x = 450,575,064,871,987
  5. Step 5: Solve for x
    x = 450,575,064,871,987/20,019,878.63
  6. Step 6: Final answer
    x = 22,506,383.45

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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.