Home / 18,853,636.28-28,280,417.49-5,206,748.07

Finding the Fourth Proportional to 18,853,636.28, 28,280,417.49 and 5,206,748.07

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Solution

The fourth proportional to 18,853,636.28, 28,280,417.49 and 5,206,748.07 is: 7,810,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853,636.28 : 28,280,417.49 = 5,206,748.07 : x
  2. Step 2: Convert to fraction form
    18,853,636.28/28,280,417.49 = 5,206,748.07/x
  3. Step 3: Cross multiply
    18,853,636.28x = 28,280,417.49 × 5,206,748.07
  4. Step 4: Simplify right side
    18,853,636.28x = 147,249,009,184,851.75
  5. Step 5: Solve for x
    x = 147,249,009,184,851.75/18,853,636.28
  6. Step 6: Final answer
    x = 7,810,111.91

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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.