Home / 87,239,563.70-120,389,036.02-47,547,451.94

Finding the Fourth Proportional to 87,239,563.70, 120,389,036.02 and 47,547,451.94

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Solution

The fourth proportional to 87,239,563.70, 120,389,036.02 and 47,547,451.94 is: 65,614,632.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239,563.70 : 120,389,036.02 = 47,547,451.94 : x
  2. Step 2: Convert to fraction form
    87,239,563.70/120,389,036.02 = 47,547,451.94/x
  3. Step 3: Cross multiply
    87,239,563.70x = 120,389,036.02 × 47,547,451.94
  4. Step 4: Simplify right side
    87,239,563.70x = 5,724,191,903,543,065
  5. Step 5: Solve for x
    x = 5,724,191,903,543,065/87,239,563.70
  6. Step 6: Final answer
    x = 65,614,632.41

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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.