Home / 119,624,779.26-165,112,908.30-77,912,784.36

Finding the Fourth Proportional to 119,624,779.26, 165,112,908.30 and 77,912,784.36

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Solution

The fourth proportional to 119,624,779.26, 165,112,908.30 and 77,912,784.36 is: 107,539,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,624,779.26 : 165,112,908.30 = 77,912,784.36 : x
  2. Step 2: Convert to fraction form
    119,624,779.26/165,112,908.30 = 77,912,784.36/x
  3. Step 3: Cross multiply
    119,624,779.26x = 165,112,908.30 × 77,912,784.36
  4. Step 4: Simplify right side
    119,624,779.26x = 12,864,406,419,430,356
  5. Step 5: Solve for x
    x = 12,864,406,419,430,356/119,624,779.26
  6. Step 6: Final answer
    x = 107,539,646.04

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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.