Home / 1,218,234,401,556.40-1,681,203,791,965.50-669,545,155,051.66

Finding the Fourth Proportional to 1,218,234,401,556.40, 1,681,203,791,965.50 and 669,545,155,051.66

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Solution

The fourth proportional to 1,218,234,401,556.40, 1,681,203,791,965.50 and 669,545,155,051.66 is: 923,994,472,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,234,401,556.40 : 1,681,203,791,965.50 = 669,545,155,051.66 : x
  2. Step 2: Convert to fraction form
    1,218,234,401,556.40/1,681,203,791,965.50 = 669,545,155,051.66/x
  3. Step 3: Cross multiply
    1,218,234,401,556.40x = 1,681,203,791,965.50 × 669,545,155,051.66
  4. Step 4: Simplify right side
    1,218,234,401,556.40x = 1,125,641,853,564,979,460,964,352
  5. Step 5: Solve for x
    x = 1,125,641,853,564,979,460,964,352/1,218,234,401,556.40
  6. Step 6: Final answer
    x = 923,994,472,760.64

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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.