Home / 21,226,158,735,942-31,842,421,654,732-7,455,318,263,142

Finding the Fourth Proportional to 21,226,158,735,942, 31,842,421,654,732 and 7,455,318,263,142

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Solution

The fourth proportional to 21,226,158,735,942, 31,842,421,654,732 and 7,455,318,263,142 is: 11,184,095,561,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226,158,735,942 : 31,842,421,654,732 = 7,455,318,263,142 : x
  2. Step 2: Convert to fraction form
    21,226,158,735,942/31,842,421,654,732 = 7,455,318,263,142/x
  3. Step 3: Cross multiply
    21,226,158,735,942x = 31,842,421,654,732 × 7,455,318,263,142
  4. Step 4: Simplify right side
    21,226,158,735,942x = 237,395,387,705,191,768,667,455,488
  5. Step 5: Solve for x
    x = 237,395,387,705,191,768,667,455,488/21,226,158,735,942
  6. Step 6: Final answer
    x = 11,184,095,561,445.75

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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.