Home / 8,123,430.09-11,211,568.65-5,184,515.19

Finding the Fourth Proportional to 8,123,430.09, 11,211,568.65 and 5,184,515.19

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Solution

The fourth proportional to 8,123,430.09, 11,211,568.65 and 5,184,515.19 is: 7,155,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123,430.09 : 11,211,568.65 = 5,184,515.19 : x
  2. Step 2: Convert to fraction form
    8,123,430.09/11,211,568.65 = 5,184,515.19/x
  3. Step 3: Cross multiply
    8,123,430.09x = 11,211,568.65 × 5,184,515.19
  4. Step 4: Simplify right side
    8,123,430.09x = 58,126,547,969,652.80
  5. Step 5: Solve for x
    x = 58,126,547,969,652.80/8,123,430.09
  6. Step 6: Final answer
    x = 7,155,419.24

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Double scale
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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.