Home / 85,840,110.30-128,768,038.65-28,332,507.90

Finding the Fourth Proportional to 85,840,110.30, 128,768,038.65 and 28,332,507.90

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Solution

The fourth proportional to 85,840,110.30, 128,768,038.65 and 28,332,507.90 is: 42,501,360.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840,110.30 : 128,768,038.65 = 28,332,507.90 : x
  2. Step 2: Convert to fraction form
    85,840,110.30/128,768,038.65 = 28,332,507.90/x
  3. Step 3: Cross multiply
    85,840,110.30x = 128,768,038.65 × 28,332,507.90
  4. Step 4: Simplify right side
    85,840,110.30x = 3,648,321,472,318,630.50
  5. Step 5: Solve for x
    x = 3,648,321,472,318,630.50/85,840,110.30
  6. Step 6: Final answer
    x = 42,501,360.49

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1.5x scale

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.