Home / 656,156,020.14-905,068,681.83-420,833,945.34

Finding the Fourth Proportional to 656,156,020.14, 905,068,681.83 and 420,833,945.34

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Solution

The fourth proportional to 656,156,020.14, 905,068,681.83 and 420,833,945.34 is: 580,477,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,156,020.14 : 905,068,681.83 = 420,833,945.34 : x
  2. Step 2: Convert to fraction form
    656,156,020.14/905,068,681.83 = 420,833,945.34/x
  3. Step 3: Cross multiply
    656,156,020.14x = 905,068,681.83 × 420,833,945.34
  4. Step 4: Simplify right side
    656,156,020.14x = 380,883,624,178,192,064
  5. Step 5: Solve for x
    x = 380,883,624,178,192,064/656,156,020.14
  6. Step 6: Final answer
    x = 580,477,222.62

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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.