Home / 28,354,546.70-42,531,820.05-13,210,009.10

Finding the Fourth Proportional to 28,354,546.70, 42,531,820.05 and 13,210,009.10

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Solution

The fourth proportional to 28,354,546.70, 42,531,820.05 and 13,210,009.10 is: 19,815,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354,546.70 : 42,531,820.05 = 13,210,009.10 : x
  2. Step 2: Convert to fraction form
    28,354,546.70/42,531,820.05 = 13,210,009.10/x
  3. Step 3: Cross multiply
    28,354,546.70x = 42,531,820.05 × 13,210,009.10
  4. Step 4: Simplify right side
    28,354,546.70x = 561,845,729,900,062.38
  5. Step 5: Solve for x
    x = 561,845,729,900,062.38/28,354,546.70
  6. Step 6: Final answer
    x = 19,815,013.65

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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.