Home / 21,026,708.80-31,490,296.80-14,258,478.40

Finding the Fourth Proportional to 21,026,708.80, 31,490,296.80 and 14,258,478.40

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Solution

The fourth proportional to 21,026,708.80, 31,490,296.80 and 14,258,478.40 is: 21,353,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,708.80 : 31,490,296.80 = 14,258,478.40 : x
  2. Step 2: Convert to fraction form
    21,026,708.80/31,490,296.80 = 14,258,478.40/x
  3. Step 3: Cross multiply
    21,026,708.80x = 31,490,296.80 × 14,258,478.40
  4. Step 4: Simplify right side
    21,026,708.80x = 449,003,716,732,389.12
  5. Step 5: Solve for x
    x = 449,003,716,732,389.12/21,026,708.80
  6. Step 6: Final answer
    x = 21,353,970.37

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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.