Home / 13,586,130-18,748,859.40-7,474,427.28

Finding the Fourth Proportional to 13,586,130, 18,748,859.40 and 7,474,427.28

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Solution

The fourth proportional to 13,586,130, 18,748,859.40 and 7,474,427.28 is: 10,314,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,130 : 18,748,859.40 = 7,474,427.28 : x
  2. Step 2: Convert to fraction form
    13,586,130/18,748,859.40 = 7,474,427.28/x
  3. Step 3: Cross multiply
    13,586,130x = 18,748,859.40 × 7,474,427.28
  4. Step 4: Simplify right side
    13,586,130x = 140,136,986,168,244.42
  5. Step 5: Solve for x
    x = 140,136,986,168,244.42/13,586,130
  6. Step 6: Final answer
    x = 10,314,709.65

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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.