Home / 143,385,428.40-214,680,011.40-139,404,116.40

Finding the Fourth Proportional to 143,385,428.40, 214,680,011.40 and 139,404,116.40

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Solution

The fourth proportional to 143,385,428.40, 214,680,011.40 and 139,404,116.40 is: 208,719,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385,428.40 : 214,680,011.40 = 139,404,116.40 : x
  2. Step 2: Convert to fraction form
    143,385,428.40/214,680,011.40 = 139,404,116.40/x
  3. Step 3: Cross multiply
    143,385,428.40x = 214,680,011.40 × 139,404,116.40
  4. Step 4: Simplify right side
    143,385,428.40x = 29,927,277,297,958,928
  5. Step 5: Solve for x
    x = 29,927,277,297,958,928/143,385,428.40
  6. Step 6: Final answer
    x = 208,719,098.11

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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.