Home / 13,618,590.48-18,793,501.84-7,423,501.56

Finding the Fourth Proportional to 13,618,590.48, 18,793,501.84 and 7,423,501.56

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Solution

The fourth proportional to 13,618,590.48, 18,793,501.84 and 7,423,501.56 is: 10,244,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,590.48 : 18,793,501.84 = 7,423,501.56 : x
  2. Step 2: Convert to fraction form
    13,618,590.48/18,793,501.84 = 7,423,501.56/x
  3. Step 3: Cross multiply
    13,618,590.48x = 18,793,501.84 × 7,423,501.56
  4. Step 4: Simplify right side
    13,618,590.48x = 139,513,590,227,102.86
  5. Step 5: Solve for x
    x = 139,513,590,227,102.86/13,618,590.48
  6. Step 6: Final answer
    x = 10,244,348.74

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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.