Home / 72,037,380.10-99,411,615.30-38,997,628.45

Finding the Fourth Proportional to 72,037,380.10, 99,411,615.30 and 38,997,628.45

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Solution

The fourth proportional to 72,037,380.10, 99,411,615.30 and 38,997,628.45 is: 53,816,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037,380.10 : 99,411,615.30 = 38,997,628.45 : x
  2. Step 2: Convert to fraction form
    72,037,380.10/99,411,615.30 = 38,997,628.45/x
  3. Step 3: Cross multiply
    72,037,380.10x = 99,411,615.30 × 38,997,628.45
  4. Step 4: Simplify right side
    72,037,380.10x = 3,876,817,237,083,735.50
  5. Step 5: Solve for x
    x = 3,876,817,237,083,735.50/72,037,380.10
  6. Step 6: Final answer
    x = 53,816,743.91

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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.