Home / 28,360,857.20-42,541,285.80-8,168,140.40

Finding the Fourth Proportional to 28,360,857.20, 42,541,285.80 and 8,168,140.40

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Solution

The fourth proportional to 28,360,857.20, 42,541,285.80 and 8,168,140.40 is: 12,252,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360,857.20 : 42,541,285.80 = 8,168,140.40 : x
  2. Step 2: Convert to fraction form
    28,360,857.20/42,541,285.80 = 8,168,140.40/x
  3. Step 3: Cross multiply
    28,360,857.20x = 42,541,285.80 × 8,168,140.40
  4. Step 4: Simplify right side
    28,360,857.20x = 347,483,195,210,926.31
  5. Step 5: Solve for x
    x = 347,483,195,210,926.31/28,360,857.20
  6. Step 6: Final answer
    x = 12,252,210.60

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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.