Home / 20,875,058.89-28,808,551.16-13,039,210.42

Finding the Fourth Proportional to 20,875,058.89, 28,808,551.16 and 13,039,210.42

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Solution

The fourth proportional to 20,875,058.89, 28,808,551.16 and 13,039,210.42 is: 17,994,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875,058.89 : 28,808,551.16 = 13,039,210.42 : x
  2. Step 2: Convert to fraction form
    20,875,058.89/28,808,551.16 = 13,039,210.42/x
  3. Step 3: Cross multiply
    20,875,058.89x = 28,808,551.16 × 13,039,210.42
  4. Step 4: Simplify right side
    20,875,058.89x = 375,640,760,382,254.75
  5. Step 5: Solve for x
    x = 375,640,760,382,254.75/20,875,058.89
  6. Step 6: Final answer
    x = 17,994,716.20

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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.