Home / 85,966,018.07-128,840,847.75-46,572,751.04

Finding the Fourth Proportional to 85,966,018.07, 128,840,847.75 and 46,572,751.04

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Solution

The fourth proportional to 85,966,018.07, 128,840,847.75 and 46,572,751.04 is: 69,800,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,966,018.07 : 128,840,847.75 = 46,572,751.04 : x
  2. Step 2: Convert to fraction form
    85,966,018.07/128,840,847.75 = 46,572,751.04/x
  3. Step 3: Cross multiply
    85,966,018.07x = 128,840,847.75 × 46,572,751.04
  4. Step 4: Simplify right side
    85,966,018.07x = 6,000,472,725,399,089
  5. Step 5: Solve for x
    x = 6,000,472,725,399,089/85,966,018.07
  6. Step 6: Final answer
    x = 69,800,519.56

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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.