Home / 102,106,780.12-140,908,255.86-55,697,240.44

Finding the Fourth Proportional to 102,106,780.12, 140,908,255.86 and 55,697,240.44

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Solution

The fourth proportional to 102,106,780.12, 140,908,255.86 and 55,697,240.44 is: 76,862,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,106,780.12 : 140,908,255.86 = 55,697,240.44 : x
  2. Step 2: Convert to fraction form
    102,106,780.12/140,908,255.86 = 55,697,240.44/x
  3. Step 3: Cross multiply
    102,106,780.12x = 140,908,255.86 × 55,697,240.44
  4. Step 4: Simplify right side
    102,106,780.12x = 7,848,201,006,615,459
  5. Step 5: Solve for x
    x = 7,848,201,006,615,459/102,106,780.12
  6. Step 6: Final answer
    x = 76,862,682.35

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1.5x scale

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.