Home / 28,205,101.26-42,307,665.89-18,618,239.18

Finding the Fourth Proportional to 28,205,101.26, 42,307,665.89 and 18,618,239.18

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Solution

The fourth proportional to 28,205,101.26, 42,307,665.89 and 18,618,239.18 is: 27,927,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205,101.26 : 42,307,665.89 = 18,618,239.18 : x
  2. Step 2: Convert to fraction form
    28,205,101.26/42,307,665.89 = 18,618,239.18/x
  3. Step 3: Cross multiply
    28,205,101.26x = 42,307,665.89 × 18,618,239.18
  4. Step 4: Simplify right side
    28,205,101.26x = 787,694,242,687,547.62
  5. Step 5: Solve for x
    x = 787,694,242,687,547.62/28,205,101.26
  6. Step 6: Final answer
    x = 27,927,368.01

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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.