Home / 91,937,140.40-137,905,710.60-80,599,732.40

Finding the Fourth Proportional to 91,937,140.40, 137,905,710.60 and 80,599,732.40

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Solution

The fourth proportional to 91,937,140.40, 137,905,710.60 and 80,599,732.40 is: 120,899,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937,140.40 : 137,905,710.60 = 80,599,732.40 : x
  2. Step 2: Convert to fraction form
    91,937,140.40/137,905,710.60 = 80,599,732.40/x
  3. Step 3: Cross multiply
    91,937,140.40x = 137,905,710.60 × 80,599,732.40
  4. Step 4: Simplify right side
    91,937,140.40x = 11,115,163,370,791,844
  5. Step 5: Solve for x
    x = 11,115,163,370,791,844/91,937,140.40
  6. Step 6: Final answer
    x = 120,899,598.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.