Home / 18,390,858.12-25,375,501.26-10,655,429.40

Finding the Fourth Proportional to 18,390,858.12, 25,375,501.26 and 10,655,429.40

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Solution

The fourth proportional to 18,390,858.12, 25,375,501.26 and 10,655,429.40 is: 14,702,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,858.12 : 25,375,501.26 = 10,655,429.40 : x
  2. Step 2: Convert to fraction form
    18,390,858.12/25,375,501.26 = 10,655,429.40/x
  3. Step 3: Cross multiply
    18,390,858.12x = 25,375,501.26 × 10,655,429.40
  4. Step 4: Simplify right side
    18,390,858.12x = 270,386,862,165,541.06
  5. Step 5: Solve for x
    x = 270,386,862,165,541.06/18,390,858.12
  6. Step 6: Final answer
    x = 14,702,242.84

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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.