Home / 28,759,425.40-43,139,138.10-13,642,881.40

Finding the Fourth Proportional to 28,759,425.40, 43,139,138.10 and 13,642,881.40

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Solution

The fourth proportional to 28,759,425.40, 43,139,138.10 and 13,642,881.40 is: 20,464,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759,425.40 : 43,139,138.10 = 13,642,881.40 : x
  2. Step 2: Convert to fraction form
    28,759,425.40/43,139,138.10 = 13,642,881.40/x
  3. Step 3: Cross multiply
    28,759,425.40x = 43,139,138.10 × 13,642,881.40
  4. Step 4: Simplify right side
    28,759,425.40x = 588,542,144,796,521.38
  5. Step 5: Solve for x
    x = 588,542,144,796,521.38/28,759,425.40
  6. Step 6: Final answer
    x = 20,464,322.10

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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.