Home / 10,780,479.40-16,170,719.10-8,867,291.80

Finding the Fourth Proportional to 10,780,479.40, 16,170,719.10 and 8,867,291.80

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Solution

The fourth proportional to 10,780,479.40, 16,170,719.10 and 8,867,291.80 is: 13,300,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,479.40 : 16,170,719.10 = 8,867,291.80 : x
  2. Step 2: Convert to fraction form
    10,780,479.40/16,170,719.10 = 8,867,291.80/x
  3. Step 3: Cross multiply
    10,780,479.40x = 16,170,719.10 × 8,867,291.80
  4. Step 4: Simplify right side
    10,780,479.40x = 143,390,484,875,533.38
  5. Step 5: Solve for x
    x = 143,390,484,875,533.38/10,780,479.40
  6. Step 6: Final answer
    x = 13,300,937.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.