Home / 18,517,208.72-27,779,713.28-7,002,421.07

Finding the Fourth Proportional to 18,517,208.72, 27,779,713.28 and 7,002,421.07

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Solution

The fourth proportional to 18,517,208.72, 27,779,713.28 and 7,002,421.07 is: 10,505,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,208.72 : 27,779,713.28 = 7,002,421.07 : x
  2. Step 2: Convert to fraction form
    18,517,208.72/27,779,713.28 = 7,002,421.07/x
  3. Step 3: Cross multiply
    18,517,208.72x = 27,779,713.28 × 7,002,421.07
  4. Step 4: Simplify right side
    18,517,208.72x = 194,525,249,547,813
  5. Step 5: Solve for x
    x = 194,525,249,547,813/18,517,208.72
  6. Step 6: Final answer
    x = 10,505,106.50

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.