Home / 91,412,784.56-137,047,030.08-45,322,875.12

Finding the Fourth Proportional to 91,412,784.56, 137,047,030.08 and 45,322,875.12

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Solution

The fourth proportional to 91,412,784.56, 137,047,030.08 and 45,322,875.12 is: 67,948,541.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,412,784.56 : 137,047,030.08 = 45,322,875.12 : x
  2. Step 2: Convert to fraction form
    91,412,784.56/137,047,030.08 = 45,322,875.12/x
  3. Step 3: Cross multiply
    91,412,784.56x = 137,047,030.08 × 45,322,875.12
  4. Step 4: Simplify right side
    91,412,784.56x = 6,211,365,429,882,724
  5. Step 5: Solve for x
    x = 6,211,365,429,882,724/91,412,784.56
  6. Step 6: Final answer
    x = 67,948,541.99

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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.