Home / 99,839,884.40-149,759,826.60-56,692,415.60

Finding the Fourth Proportional to 99,839,884.40, 149,759,826.60 and 56,692,415.60

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Solution

The fourth proportional to 99,839,884.40, 149,759,826.60 and 56,692,415.60 is: 85,038,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,839,884.40 : 149,759,826.60 = 56,692,415.60 : x
  2. Step 2: Convert to fraction form
    99,839,884.40/149,759,826.60 = 56,692,415.60/x
  3. Step 3: Cross multiply
    99,839,884.40x = 149,759,826.60 × 56,692,415.60
  4. Step 4: Simplify right side
    99,839,884.40x = 8,490,246,329,791,135
  5. Step 5: Solve for x
    x = 8,490,246,329,791,135/99,839,884.40
  6. Step 6: Final answer
    x = 85,038,623.40

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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.