Home / 143,393,989.78-215,090,656.61-61,459,740.64

Finding the Fourth Proportional to 143,393,989.78, 215,090,656.61 and 61,459,740.64

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Solution

The fourth proportional to 143,393,989.78, 215,090,656.61 and 61,459,740.64 is: 92,189,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,393,989.78 : 215,090,656.61 = 61,459,740.64 : x
  2. Step 2: Convert to fraction form
    143,393,989.78/215,090,656.61 = 61,459,740.64/x
  3. Step 3: Cross multiply
    143,393,989.78x = 215,090,656.61 × 61,459,740.64
  4. Step 4: Simplify right side
    143,393,989.78x = 13,219,415,968,262,448
  5. Step 5: Solve for x
    x = 13,219,415,968,262,448/143,393,989.78
  6. Step 6: Final answer
    x = 92,189,470.35

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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.