Home / 143,791,309.80-215,686,964.70-109,779,085.80

Finding the Fourth Proportional to 143,791,309.80, 215,686,964.70 and 109,779,085.80

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Solution

The fourth proportional to 143,791,309.80, 215,686,964.70 and 109,779,085.80 is: 164,668,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,791,309.80 : 215,686,964.70 = 109,779,085.80 : x
  2. Step 2: Convert to fraction form
    143,791,309.80/215,686,964.70 = 109,779,085.80/x
  3. Step 3: Cross multiply
    143,791,309.80x = 215,686,964.70 × 109,779,085.80
  4. Step 4: Simplify right side
    143,791,309.80x = 23,677,917,803,742,868
  5. Step 5: Solve for x
    x = 23,677,917,803,742,868/143,791,309.80
  6. Step 6: Final answer
    x = 164,668,628.70

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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.