Home / 28,558,209.60-42,774,328.80-17,178,811.20

Finding the Fourth Proportional to 28,558,209.60, 42,774,328.80 and 17,178,811.20

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Solution

The fourth proportional to 28,558,209.60, 42,774,328.80 and 17,178,811.20 is: 25,730,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558,209.60 : 42,774,328.80 = 17,178,811.20 : x
  2. Step 2: Convert to fraction form
    28,558,209.60/42,774,328.80 = 17,178,811.20/x
  3. Step 3: Cross multiply
    28,558,209.60x = 42,774,328.80 × 17,178,811.20
  4. Step 4: Simplify right side
    28,558,209.60x = 734,812,118,661,922.50
  5. Step 5: Solve for x
    x = 734,812,118,661,922.50/28,558,209.60
  6. Step 6: Final answer
    x = 25,730,328.65

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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.