Home / 13,090,132.67-18,064,210.79-7,209,653.90

Finding the Fourth Proportional to 13,090,132.67, 18,064,210.79 and 7,209,653.90

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Solution

The fourth proportional to 13,090,132.67, 18,064,210.79 and 7,209,653.90 is: 9,949,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090,132.67 : 18,064,210.79 = 7,209,653.90 : x
  2. Step 2: Convert to fraction form
    13,090,132.67/18,064,210.79 = 7,209,653.90/x
  3. Step 3: Cross multiply
    13,090,132.67x = 18,064,210.79 × 7,209,653.90
  4. Step 4: Simplify right side
    13,090,132.67x = 130,236,707,646,176.25
  5. Step 5: Solve for x
    x = 130,236,707,646,176.25/13,090,132.67
  6. Step 6: Final answer
    x = 9,949,227.48

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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.