Home / 15,393,776.64-21,243,600.72-8,518,898.40

Finding the Fourth Proportional to 15,393,776.64, 21,243,600.72 and 8,518,898.40

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Solution

The fourth proportional to 15,393,776.64, 21,243,600.72 and 8,518,898.40 is: 11,756,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393,776.64 : 21,243,600.72 = 8,518,898.40 : x
  2. Step 2: Convert to fraction form
    15,393,776.64/21,243,600.72 = 8,518,898.40/x
  3. Step 3: Cross multiply
    15,393,776.64x = 21,243,600.72 × 8,518,898.40
  4. Step 4: Simplify right side
    15,393,776.64x = 180,972,076,183,846.84
  5. Step 5: Solve for x
    x = 180,972,076,183,846.84/15,393,776.64
  6. Step 6: Final answer
    x = 11,756,184.36

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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.