Home / 85,840,098.30-128,768,020.65-28,332,495.90

Finding the Fourth Proportional to 85,840,098.30, 128,768,020.65 and 28,332,495.90

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Solution

The fourth proportional to 85,840,098.30, 128,768,020.65 and 28,332,495.90 is: 42,501,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840,098.30 : 128,768,020.65 = 28,332,495.90 : x
  2. Step 2: Convert to fraction form
    85,840,098.30/128,768,020.65 = 28,332,495.90/x
  3. Step 3: Cross multiply
    85,840,098.30x = 128,768,020.65 × 28,332,495.90
  4. Step 4: Simplify right side
    85,840,098.30x = 3,648,319,417,117,240.50
  5. Step 5: Solve for x
    x = 3,648,319,417,117,240.50/85,840,098.30
  6. Step 6: Final answer
    x = 42,501,342.49

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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.