Home / 85,934,465.80-128,712,741.90-45,497,710.60

Finding the Fourth Proportional to 85,934,465.80, 128,712,741.90 and 45,497,710.60

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Solution

The fourth proportional to 85,934,465.80, 128,712,741.90 and 45,497,710.60 is: 68,146,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,934,465.80 : 128,712,741.90 = 45,497,710.60 : x
  2. Step 2: Convert to fraction form
    85,934,465.80/128,712,741.90 = 45,497,710.60/x
  3. Step 3: Cross multiply
    85,934,465.80x = 128,712,741.90 × 45,497,710.60
  4. Step 4: Simplify right side
    85,934,465.80x = 5,856,135,081,498,695
  5. Step 5: Solve for x
    x = 5,856,135,081,498,695/85,934,465.80
  6. Step 6: Final answer
    x = 68,146,523.37

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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.