Home / 18,853,639.28-28,280,421.99-5,206,751.07

Finding the Fourth Proportional to 18,853,639.28, 28,280,421.99 and 5,206,751.07

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Solution

The fourth proportional to 18,853,639.28, 28,280,421.99 and 5,206,751.07 is: 7,810,116.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853,639.28 : 28,280,421.99 = 5,206,751.07 : x
  2. Step 2: Convert to fraction form
    18,853,639.28/28,280,421.99 = 5,206,751.07/x
  3. Step 3: Cross multiply
    18,853,639.28x = 28,280,421.99 × 5,206,751.07
  4. Step 4: Simplify right side
    18,853,639.28x = 147,249,117,456,484.03
  5. Step 5: Solve for x
    x = 147,249,117,456,484.03/18,853,639.28
  6. Step 6: Final answer
    x = 7,810,116.41

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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.