Home / 91,390,823.64-137,081,189.48-66,823,925.45

Finding the Fourth Proportional to 91,390,823.64, 137,081,189.48 and 66,823,925.45

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Solution

The fourth proportional to 91,390,823.64, 137,081,189.48 and 66,823,925.45 is: 100,232,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390,823.64 : 137,081,189.48 = 66,823,925.45 : x
  2. Step 2: Convert to fraction form
    91,390,823.64/137,081,189.48 = 66,823,925.45/x
  3. Step 3: Cross multiply
    91,390,823.64x = 137,081,189.48 × 66,823,925.45
  4. Step 4: Simplify right side
    91,390,823.64x = 9,160,303,185,389,318
  5. Step 5: Solve for x
    x = 9,160,303,185,389,318/91,390,823.64
  6. Step 6: Final answer
    x = 100,232,198.60

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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.