Home / 201,582,280.90-302,429,408.55-86,621,896.90

Finding the Fourth Proportional to 201,582,280.90, 302,429,408.55 and 86,621,896.90

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Solution

The fourth proportional to 201,582,280.90, 302,429,408.55 and 86,621,896.90 is: 129,956,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,582,280.90 : 302,429,408.55 = 86,621,896.90 : x
  2. Step 2: Convert to fraction form
    201,582,280.90/302,429,408.55 = 86,621,896.90/x
  3. Step 3: Cross multiply
    201,582,280.90x = 302,429,408.55 × 86,621,896.90
  4. Step 4: Simplify right side
    201,582,280.90x = 26,197,009,046,946,080
  5. Step 5: Solve for x
    x = 26,197,009,046,946,080/201,582,280.90
  6. Step 6: Final answer
    x = 129,956,903.60

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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.