Home / 612,112,290.75-917,624,687.13-238,533,699.78

Finding the Fourth Proportional to 612,112,290.75, 917,624,687.13 and 238,533,699.78

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Solution

The fourth proportional to 612,112,290.75, 917,624,687.13 and 238,533,699.78 is: 357,588,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,112,290.75 : 917,624,687.13 = 238,533,699.78 : x
  2. Step 2: Convert to fraction form
    612,112,290.75/917,624,687.13 = 238,533,699.78/x
  3. Step 3: Cross multiply
    612,112,290.75x = 917,624,687.13 × 238,533,699.78
  4. Step 4: Simplify right side
    612,112,290.75x = 218,884,411,630,583,840
  5. Step 5: Solve for x
    x = 218,884,411,630,583,840/612,112,290.75
  6. Step 6: Final answer
    x = 357,588,656.43

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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.