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Finding the Fourth Proportional to 65,973,999.60, 98,960,999.40 and 55,770,332.40

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Solution

The fourth proportional to 65,973,999.60, 98,960,999.40 and 55,770,332.40 is: 83,655,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,973,999.60 : 98,960,999.40 = 55,770,332.40 : x
  2. Step 2: Convert to fraction form
    65,973,999.60/98,960,999.40 = 55,770,332.40/x
  3. Step 3: Cross multiply
    65,973,999.60x = 98,960,999.40 × 55,770,332.40
  4. Step 4: Simplify right side
    65,973,999.60x = 5,519,087,831,174,201
  5. Step 5: Solve for x
    x = 5,519,087,831,174,201/65,973,999.60
  6. Step 6: Final answer
    x = 83,655,498.60

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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.