Home / 15,311,473.53-21,130,214-9,428,880.93

Finding the Fourth Proportional to 15,311,473.53, 21,130,214 and 9,428,880.93

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Solution

The fourth proportional to 15,311,473.53, 21,130,214 and 9,428,880.93 is: 13,012,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311,473.53 : 21,130,214 = 9,428,880.93 : x
  2. Step 2: Convert to fraction form
    15,311,473.53/21,130,214 = 9,428,880.93/x
  3. Step 3: Cross multiply
    15,311,473.53x = 21,130,214 × 9,428,880.93
  4. Step 4: Simplify right side
    15,311,473.53x = 199,234,271,831,419
  5. Step 5: Solve for x
    x = 199,234,271,831,419/15,311,473.53
  6. Step 6: Final answer
    x = 13,012,090.01

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1.5x scale

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.