Home / 85,547,846.20-128,321,769.30-51,535,622.20

Finding the Fourth Proportional to 85,547,846.20, 128,321,769.30 and 51,535,622.20

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Solution

The fourth proportional to 85,547,846.20, 128,321,769.30 and 51,535,622.20 is: 77,303,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,846.20 : 128,321,769.30 = 51,535,622.20 : x
  2. Step 2: Convert to fraction form
    85,547,846.20/128,321,769.30 = 51,535,622.20/x
  3. Step 3: Cross multiply
    85,547,846.20x = 128,321,769.30 × 51,535,622.20
  4. Step 4: Simplify right side
    85,547,846.20x = 6,613,142,222,680,359
  5. Step 5: Solve for x
    x = 6,613,142,222,680,359/85,547,846.20
  6. Step 6: Final answer
    x = 77,303,433.30

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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.