Home / 15,547,085.32-21,455,015.70-8,672,012.68

Finding the Fourth Proportional to 15,547,085.32, 21,455,015.70 and 8,672,012.68

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Solution

The fourth proportional to 15,547,085.32, 21,455,015.70 and 8,672,012.68 is: 11,967,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547,085.32 : 21,455,015.70 = 8,672,012.68 : x
  2. Step 2: Convert to fraction form
    15,547,085.32/21,455,015.70 = 8,672,012.68/x
  3. Step 3: Cross multiply
    15,547,085.32x = 21,455,015.70 × 8,672,012.68
  4. Step 4: Simplify right side
    15,547,085.32x = 186,058,168,199,999.06
  5. Step 5: Solve for x
    x = 186,058,168,199,999.06/15,547,085.32
  6. Step 6: Final answer
    x = 11,967,398.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.