Home / 39,709,123.20-59,563,684.80-12,782,779.20

Finding the Fourth Proportional to 39,709,123.20, 59,563,684.80 and 12,782,779.20

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Solution

The fourth proportional to 39,709,123.20, 59,563,684.80 and 12,782,779.20 is: 19,174,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,709,123.20 : 59,563,684.80 = 12,782,779.20 : x
  2. Step 2: Convert to fraction form
    39,709,123.20/59,563,684.80 = 12,782,779.20/x
  3. Step 3: Cross multiply
    39,709,123.20x = 59,563,684.80 × 12,782,779.20
  4. Step 4: Simplify right side
    39,709,123.20x = 761,389,431,136,796.12
  5. Step 5: Solve for x
    x = 761,389,431,136,796.12/39,709,123.20
  6. Step 6: Final answer
    x = 19,174,168.80

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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.