Home / 155,830,829.94-215,052,875.37-86,215,077

Finding the Fourth Proportional to 155,830,829.94, 215,052,875.37 and 86,215,077

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Solution

The fourth proportional to 155,830,829.94, 215,052,875.37 and 86,215,077 is: 118,980,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,830,829.94 : 215,052,875.37 = 86,215,077 : x
  2. Step 2: Convert to fraction form
    155,830,829.94/215,052,875.37 = 86,215,077/x
  3. Step 3: Cross multiply
    155,830,829.94x = 215,052,875.37 × 86,215,077
  4. Step 4: Simplify right side
    155,830,829.94x = 18,540,800,209,095,952
  5. Step 5: Solve for x
    x = 18,540,800,209,095,952/155,830,829.94
  6. Step 6: Final answer
    x = 118,980,308.43

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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.