Home / 85,840,099.80-128,768,022.90-28,332,497.40

Finding the Fourth Proportional to 85,840,099.80, 128,768,022.90 and 28,332,497.40

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Solution

The fourth proportional to 85,840,099.80, 128,768,022.90 and 28,332,497.40 is: 42,501,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840,099.80 : 128,768,022.90 = 28,332,497.40 : x
  2. Step 2: Convert to fraction form
    85,840,099.80/128,768,022.90 = 28,332,497.40/x
  3. Step 3: Cross multiply
    85,840,099.80x = 128,768,022.90 × 28,332,497.40
  4. Step 4: Simplify right side
    85,840,099.80x = 3,648,319,674,017,390.50
  5. Step 5: Solve for x
    x = 3,648,319,674,017,390.50/85,840,099.80
  6. Step 6: Final answer
    x = 42,501,344.74

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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.