Home / 143,891,379.40-215,837,069.10-118,697,139.40

Finding the Fourth Proportional to 143,891,379.40, 215,837,069.10 and 118,697,139.40

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Solution

The fourth proportional to 143,891,379.40, 215,837,069.10 and 118,697,139.40 is: 178,045,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,891,379.40 : 215,837,069.10 = 118,697,139.40 : x
  2. Step 2: Convert to fraction form
    143,891,379.40/215,837,069.10 = 118,697,139.40/x
  3. Step 3: Cross multiply
    143,891,379.40x = 215,837,069.10 × 118,697,139.40
  4. Step 4: Simplify right side
    143,891,379.40x = 25,619,242,678,650,132
  5. Step 5: Solve for x
    x = 25,619,242,678,650,132/143,891,379.40
  6. Step 6: Final answer
    x = 178,045,709.10

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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.