Home / 99,862,699.68-137,814,781.59-55,809,697.28

Finding the Fourth Proportional to 99,862,699.68, 137,814,781.59 and 55,809,697.28

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Solution

The fourth proportional to 99,862,699.68, 137,814,781.59 and 55,809,697.28 is: 77,019,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862,699.68 : 137,814,781.59 = 55,809,697.28 : x
  2. Step 2: Convert to fraction form
    99,862,699.68/137,814,781.59 = 55,809,697.28/x
  3. Step 3: Cross multiply
    99,862,699.68x = 137,814,781.59 × 55,809,697.28
  4. Step 4: Simplify right side
    99,862,699.68x = 7,691,401,240,558,143
  5. Step 5: Solve for x
    x = 7,691,401,240,558,143/99,862,699.68
  6. Step 6: Final answer
    x = 77,019,760.78

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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.