Home / 28,341,918.12-42,519,623.76-9,172,675.20

Finding the Fourth Proportional to 28,341,918.12, 42,519,623.76 and 9,172,675.20

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Solution

The fourth proportional to 28,341,918.12, 42,519,623.76 and 9,172,675.20 is: 13,761,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,918.12 : 42,519,623.76 = 9,172,675.20 : x
  2. Step 2: Convert to fraction form
    28,341,918.12/42,519,623.76 = 9,172,675.20/x
  3. Step 3: Cross multiply
    28,341,918.12x = 42,519,623.76 × 9,172,675.20
  4. Step 4: Simplify right side
    28,341,918.12x = 390,018,698,376,682.69
  5. Step 5: Solve for x
    x = 390,018,698,376,682.69/28,341,918.12
  6. Step 6: Final answer
    x = 13,761,196.29

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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.