Home / 15,064,984.80-20,789,434.08-8,189,640

Finding the Fourth Proportional to 15,064,984.80, 20,789,434.08 and 8,189,640

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Solution

The fourth proportional to 15,064,984.80, 20,789,434.08 and 8,189,640 is: 11,301,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064,984.80 : 20,789,434.08 = 8,189,640 : x
  2. Step 2: Convert to fraction form
    15,064,984.80/20,789,434.08 = 8,189,640/x
  3. Step 3: Cross multiply
    15,064,984.80x = 20,789,434.08 × 8,189,640
  4. Step 4: Simplify right side
    15,064,984.80x = 170,257,980,918,931.19
  5. Step 5: Solve for x
    x = 170,257,980,918,931.19/15,064,984.80
  6. Step 6: Final answer
    x = 11,301,570.04

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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.