Home / 42,629,998.40-63,871,514.40-19,864,203.20

Finding the Fourth Proportional to 42,629,998.40, 63,871,514.40 and 19,864,203.20

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Solution

The fourth proportional to 42,629,998.40, 63,871,514.40 and 19,864,203.20 is: 29,762,064.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629,998.40 : 63,871,514.40 = 19,864,203.20 : x
  2. Step 2: Convert to fraction form
    42,629,998.40/63,871,514.40 = 19,864,203.20/x
  3. Step 3: Cross multiply
    42,629,998.40x = 63,871,514.40 × 19,864,203.20
  4. Step 4: Simplify right side
    42,629,998.40x = 1,268,756,740,733,326
  5. Step 5: Solve for x
    x = 1,268,756,740,733,326/42,629,998.40
  6. Step 6: Final answer
    x = 29,762,064.00

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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.