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Finding the Fourth Proportional to 1,184,912,918.01, 1,636,278,978.65 and 887,038,021.35

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Solution

The fourth proportional to 1,184,912,918.01, 1,636,278,978.65 and 887,038,021.35 is: 1,224,935,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,912,918.01 : 1,636,278,978.65 = 887,038,021.35 : x
  2. Step 2: Convert to fraction form
    1,184,912,918.01/1,636,278,978.65 = 887,038,021.35/x
  3. Step 3: Cross multiply
    1,184,912,918.01x = 1,636,278,978.65 × 887,038,021.35
  4. Step 4: Simplify right side
    1,184,912,918.01x = 1,451,441,667,593,859,840
  5. Step 5: Solve for x
    x = 1,451,441,667,593,859,840/1,184,912,918.01
  6. Step 6: Final answer
    x = 1,224,935,305.82

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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.