Home / 21,656,669.40-29,875,025.64-14,684,988.36

Finding the Fourth Proportional to 21,656,669.40, 29,875,025.64 and 14,684,988.36

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Solution

The fourth proportional to 21,656,669.40, 29,875,025.64 and 14,684,988.36 is: 20,257,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656,669.40 : 29,875,025.64 = 14,684,988.36 : x
  2. Step 2: Convert to fraction form
    21,656,669.40/29,875,025.64 = 14,684,988.36/x
  3. Step 3: Cross multiply
    21,656,669.40x = 29,875,025.64 × 14,684,988.36
  4. Step 4: Simplify right side
    21,656,669.40x = 438,714,403,778,101.56
  5. Step 5: Solve for x
    x = 438,714,403,778,101.56/21,656,669.40
  6. Step 6: Final answer
    x = 20,257,704.25

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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.