Home / 21,327,564.04-29,435,557.74-13,072,218.40

Finding the Fourth Proportional to 21,327,564.04, 29,435,557.74 and 13,072,218.40

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Solution

The fourth proportional to 21,327,564.04, 29,435,557.74 and 13,072,218.40 is: 18,041,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327,564.04 : 29,435,557.74 = 13,072,218.40 : x
  2. Step 2: Convert to fraction form
    21,327,564.04/29,435,557.74 = 13,072,218.40/x
  3. Step 3: Cross multiply
    21,327,564.04x = 29,435,557.74 × 13,072,218.40
  4. Step 4: Simplify right side
    21,327,564.04x = 384,788,039,503,090.38
  5. Step 5: Solve for x
    x = 384,788,039,503,090.38/21,327,564.04
  6. Step 6: Final answer
    x = 18,041,818.50

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1.5x scale

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.