Home / 102,106,784.50-140,908,261.90-55,697,244.82

Finding the Fourth Proportional to 102,106,784.50, 140,908,261.90 and 55,697,244.82

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Solution

The fourth proportional to 102,106,784.50, 140,908,261.90 and 55,697,244.82 is: 76,862,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,106,784.50 : 140,908,261.90 = 55,697,244.82 : x
  2. Step 2: Convert to fraction form
    102,106,784.50/140,908,261.90 = 55,697,244.82/x
  3. Step 3: Cross multiply
    102,106,784.50x = 140,908,261.90 × 55,697,244.82
  4. Step 4: Simplify right side
    102,106,784.50x = 7,848,201,960,204,979
  5. Step 5: Solve for x
    x = 7,848,201,960,204,979/102,106,784.50
  6. Step 6: Final answer
    x = 76,862,688.40

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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.