Home / 99,862,701.18-137,814,783.66-55,809,698.78

Finding the Fourth Proportional to 99,862,701.18, 137,814,783.66 and 55,809,698.78

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Solution

The fourth proportional to 99,862,701.18, 137,814,783.66 and 55,809,698.78 is: 77,019,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862,701.18 : 137,814,783.66 = 55,809,698.78 : x
  2. Step 2: Convert to fraction form
    99,862,701.18/137,814,783.66 = 55,809,698.78/x
  3. Step 3: Cross multiply
    99,862,701.18x = 137,814,783.66 × 55,809,698.78
  4. Step 4: Simplify right side
    99,862,701.18x = 7,691,401,562,806,392
  5. Step 5: Solve for x
    x = 7,691,401,562,806,392/99,862,701.18
  6. Step 6: Final answer
    x = 77,019,762.85

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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.