Home / 85,547,849.70-128,321,774.55-51,535,625.70

Finding the Fourth Proportional to 85,547,849.70, 128,321,774.55 and 51,535,625.70

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Solution

The fourth proportional to 85,547,849.70, 128,321,774.55 and 51,535,625.70 is: 77,303,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,849.70 : 128,321,774.55 = 51,535,625.70 : x
  2. Step 2: Convert to fraction form
    85,547,849.70/128,321,774.55 = 51,535,625.70/x
  3. Step 3: Cross multiply
    85,547,849.70x = 128,321,774.55 × 51,535,625.70
  4. Step 4: Simplify right side
    85,547,849.70x = 6,613,142,942,368,586
  5. Step 5: Solve for x
    x = 6,613,142,942,368,586/85,547,849.70
  6. Step 6: Final answer
    x = 77,303,438.55

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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.