Home / 15,386,898.55-21,231,839.99-8,772,340.28

Finding the Fourth Proportional to 15,386,898.55, 21,231,839.99 and 8,772,340.28

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Solution

The fourth proportional to 15,386,898.55, 21,231,839.99 and 8,772,340.28 is: 12,104,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,898.55 : 21,231,839.99 = 8,772,340.28 : x
  2. Step 2: Convert to fraction form
    15,386,898.55/21,231,839.99 = 8,772,340.28/x
  3. Step 3: Cross multiply
    15,386,898.55x = 21,231,839.99 × 8,772,340.28
  4. Step 4: Simplify right side
    15,386,898.55x = 186,252,925,172,009.72
  5. Step 5: Solve for x
    x = 186,252,925,172,009.72/15,386,898.55
  6. Step 6: Final answer
    x = 12,104,643.74

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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.