Home / 140,471,919,417.11-193,851,392,262.81-76,242,656,967.43

Finding the Fourth Proportional to 140,471,919,417.11, 193,851,392,262.81 and 76,242,656,967.43

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Solution

The fourth proportional to 140,471,919,417.11, 193,851,392,262.81 and 76,242,656,967.43 is: 105,214,944,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,471,919,417.11 : 193,851,392,262.81 = 76,242,656,967.43 : x
  2. Step 2: Convert to fraction form
    140,471,919,417.11/193,851,392,262.81 = 76,242,656,967.43/x
  3. Step 3: Cross multiply
    140,471,919,417.11x = 193,851,392,262.81 × 76,242,656,967.43
  4. Step 4: Simplify right side
    140,471,919,417.11x = 14,779,745,202,952,134,983,680
  5. Step 5: Solve for x
    x = 14,779,745,202,952,134,983,680/140,471,919,417.11
  6. Step 6: Final answer
    x = 105,214,944,483.43

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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.