Home / 31,779,043.20-47,668,564.80-8,749,933.20

Finding the Fourth Proportional to 31,779,043.20, 47,668,564.80 and 8,749,933.20

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Solution

The fourth proportional to 31,779,043.20, 47,668,564.80 and 8,749,933.20 is: 13,124,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779,043.20 : 47,668,564.80 = 8,749,933.20 : x
  2. Step 2: Convert to fraction form
    31,779,043.20/47,668,564.80 = 8,749,933.20/x
  3. Step 3: Cross multiply
    31,779,043.20x = 47,668,564.80 × 8,749,933.20
  4. Step 4: Simplify right side
    31,779,043.20x = 417,096,757,739,871.31
  5. Step 5: Solve for x
    x = 417,096,757,739,871.31/31,779,043.20
  6. Step 6: Final answer
    x = 13,124,899.80

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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.