Home / 42,925,137.81-64,414,190.61-19,891,779.05

Finding the Fourth Proportional to 42,925,137.81, 64,414,190.61 and 19,891,779.05

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Solution

The fourth proportional to 42,925,137.81, 64,414,190.61 and 19,891,779.05 is: 29,849,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,925,137.81 : 64,414,190.61 = 19,891,779.05 : x
  2. Step 2: Convert to fraction form
    42,925,137.81/64,414,190.61 = 19,891,779.05/x
  3. Step 3: Cross multiply
    42,925,137.81x = 64,414,190.61 × 19,891,779.05
  4. Step 4: Simplify right side
    42,925,137.81x = 1,281,312,847,298,704.75
  5. Step 5: Solve for x
    x = 1,281,312,847,298,704.75/42,925,137.81
  6. Step 6: Final answer
    x = 29,849,941.38

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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.