Home / 8,178,875.20-12,268,312.80-2,793,606.40

Finding the Fourth Proportional to 8,178,875.20, 12,268,312.80 and 2,793,606.40

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Solution

The fourth proportional to 8,178,875.20, 12,268,312.80 and 2,793,606.40 is: 4,190,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,875.20 : 12,268,312.80 = 2,793,606.40 : x
  2. Step 2: Convert to fraction form
    8,178,875.20/12,268,312.80 = 2,793,606.40/x
  3. Step 3: Cross multiply
    8,178,875.20x = 12,268,312.80 × 2,793,606.40
  4. Step 4: Simplify right side
    8,178,875.20x = 34,272,837,155,281.92
  5. Step 5: Solve for x
    x = 34,272,837,155,281.92/8,178,875.20
  6. Step 6: Final answer
    x = 4,190,409.60

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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.