Home / 19,779,969.80-29,669,954.70-12,127,219.40

Finding the Fourth Proportional to 19,779,969.80, 29,669,954.70 and 12,127,219.40

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Solution

The fourth proportional to 19,779,969.80, 29,669,954.70 and 12,127,219.40 is: 18,190,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779,969.80 : 29,669,954.70 = 12,127,219.40 : x
  2. Step 2: Convert to fraction form
    19,779,969.80/29,669,954.70 = 12,127,219.40/x
  3. Step 3: Cross multiply
    19,779,969.80x = 29,669,954.70 × 12,127,219.40
  4. Step 4: Simplify right side
    19,779,969.80x = 359,814,050,234,961.19
  5. Step 5: Solve for x
    x = 359,814,050,234,961.19/19,779,969.80
  6. Step 6: Final answer
    x = 18,190,829.10

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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.