Home / 15,490,709.51-21,376,749.15-8,426,068.92

Finding the Fourth Proportional to 15,490,709.51, 21,376,749.15 and 8,426,068.92

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Solution

The fourth proportional to 15,490,709.51, 21,376,749.15 and 8,426,068.92 is: 11,627,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490,709.51 : 21,376,749.15 = 8,426,068.92 : x
  2. Step 2: Convert to fraction form
    15,490,709.51/21,376,749.15 = 8,426,068.92/x
  3. Step 3: Cross multiply
    15,490,709.51x = 21,376,749.15 × 8,426,068.92
  4. Step 4: Simplify right side
    15,490,709.51x = 180,121,961,623,451.41
  5. Step 5: Solve for x
    x = 180,121,961,623,451.41/15,490,709.51
  6. Step 6: Final answer
    x = 11,627,741.23

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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.