Home / 38,779,891.02-53,516,235.87-21,376,525.86

Finding the Fourth Proportional to 38,779,891.02, 53,516,235.87 and 21,376,525.86

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Solution

The fourth proportional to 38,779,891.02, 53,516,235.87 and 21,376,525.86 is: 29,499,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,891.02 : 53,516,235.87 = 21,376,525.86 : x
  2. Step 2: Convert to fraction form
    38,779,891.02/53,516,235.87 = 21,376,525.86/x
  3. Step 3: Cross multiply
    38,779,891.02x = 53,516,235.87 × 21,376,525.86
  4. Step 4: Simplify right side
    38,779,891.02x = 1,143,991,200,004,914.50
  5. Step 5: Solve for x
    x = 1,143,991,200,004,914.50/38,779,891.02
  6. Step 6: Final answer
    x = 29,499,598.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.