Home / 21,069,377.70-31,609,971.45-10,287,030.30

Finding the Fourth Proportional to 21,069,377.70, 31,609,971.45 and 10,287,030.30

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Solution

The fourth proportional to 21,069,377.70, 31,609,971.45 and 10,287,030.30 is: 15,433,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,377.70 : 31,609,971.45 = 10,287,030.30 : x
  2. Step 2: Convert to fraction form
    21,069,377.70/31,609,971.45 = 10,287,030.30/x
  3. Step 3: Cross multiply
    21,069,377.70x = 31,609,971.45 × 10,287,030.30
  4. Step 4: Simplify right side
    21,069,377.70x = 325,172,734,088,284.94
  5. Step 5: Solve for x
    x = 325,172,734,088,284.94/21,069,377.70
  6. Step 6: Final answer
    x = 15,433,428.49

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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.