Home / 839,938,942,457.85-1,159,103,404,865.20-469,147,771,609.70

Finding the Fourth Proportional to 839,938,942,457.85, 1,159,103,404,865.20 and 469,147,771,609.70

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Solution

The fourth proportional to 839,938,942,457.85, 1,159,103,404,865.20 and 469,147,771,609.70 is: 647,417,034,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,938,942,457.85 : 1,159,103,404,865.20 = 469,147,771,609.70 : x
  2. Step 2: Convert to fraction form
    839,938,942,457.85/1,159,103,404,865.20 = 469,147,771,609.70/x
  3. Step 3: Cross multiply
    839,938,942,457.85x = 1,159,103,404,865.20 × 469,147,771,609.70
  4. Step 4: Simplify right side
    839,938,942,457.85x = 543,790,779,457,724,462,661,632
  5. Step 5: Solve for x
    x = 543,790,779,457,724,462,661,632/839,938,942,457.85
  6. Step 6: Final answer
    x = 647,417,034,703.11

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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.