Home / 28,312,499.80-42,468,749.70-15,528,064.60

Finding the Fourth Proportional to 28,312,499.80, 42,468,749.70 and 15,528,064.60

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Solution

The fourth proportional to 28,312,499.80, 42,468,749.70 and 15,528,064.60 is: 23,292,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312,499.80 : 42,468,749.70 = 15,528,064.60 : x
  2. Step 2: Convert to fraction form
    28,312,499.80/42,468,749.70 = 15,528,064.60/x
  3. Step 3: Cross multiply
    28,312,499.80x = 42,468,749.70 × 15,528,064.60
  4. Step 4: Simplify right side
    28,312,499.80x = 659,457,488,822,830.62
  5. Step 5: Solve for x
    x = 659,457,488,822,830.62/28,312,499.80
  6. Step 6: Final answer
    x = 23,292,096.90

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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.