Home / 201,582,374.40-302,429,548.80-86,621,990.40

Finding the Fourth Proportional to 201,582,374.40, 302,429,548.80 and 86,621,990.40

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Solution

The fourth proportional to 201,582,374.40, 302,429,548.80 and 86,621,990.40 is: 129,957,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,582,374.40 : 302,429,548.80 = 86,621,990.40 : x
  2. Step 2: Convert to fraction form
    201,582,374.40/302,429,548.80 = 86,621,990.40/x
  3. Step 3: Cross multiply
    201,582,374.40x = 302,429,548.80 × 86,621,990.40
  4. Step 4: Simplify right side
    201,582,374.40x = 26,197,049,472,829,936
  5. Step 5: Solve for x
    x = 26,197,049,472,829,936/201,582,374.40
  6. Step 6: Final answer
    x = 129,957,043.87

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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.