Home / 18,171,689.64-25,076,931.79-9,911,751.50

Finding the Fourth Proportional to 18,171,689.64, 25,076,931.79 and 9,911,751.50

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Solution

The fourth proportional to 18,171,689.64, 25,076,931.79 and 9,911,751.50 is: 13,678,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,689.64 : 25,076,931.79 = 9,911,751.50 : x
  2. Step 2: Convert to fraction form
    18,171,689.64/25,076,931.79 = 9,911,751.50/x
  3. Step 3: Cross multiply
    18,171,689.64x = 25,076,931.79 × 9,911,751.50
  4. Step 4: Simplify right side
    18,171,689.64x = 248,556,316,134,766.16
  5. Step 5: Solve for x
    x = 248,556,316,134,766.16/18,171,689.64
  6. Step 6: Final answer
    x = 13,678,217.11

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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.