Home / 15,287,389.85-21,095,965.47-8,318,096.08

Finding the Fourth Proportional to 15,287,389.85, 21,095,965.47 and 8,318,096.08

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Solution

The fourth proportional to 15,287,389.85, 21,095,965.47 and 8,318,096.08 is: 11,478,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,389.85 : 21,095,965.47 = 8,318,096.08 : x
  2. Step 2: Convert to fraction form
    15,287,389.85/21,095,965.47 = 8,318,096.08/x
  3. Step 3: Cross multiply
    15,287,389.85x = 21,095,965.47 × 8,318,096.08
  4. Step 4: Simplify right side
    15,287,389.85x = 175,478,267,574,342.53
  5. Step 5: Solve for x
    x = 175,478,267,574,342.53/15,287,389.85
  6. Step 6: Final answer
    x = 11,478,628.42

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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.