Home / 8,124,442.62-11,205,193.42-7,142,281.71

Finding the Fourth Proportional to 8,124,442.62, 11,205,193.42 and 7,142,281.71

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Solution

The fourth proportional to 8,124,442.62, 11,205,193.42 and 7,142,281.71 is: 9,850,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,442.62 : 11,205,193.42 = 7,142,281.71 : x
  2. Step 2: Convert to fraction form
    8,124,442.62/11,205,193.42 = 7,142,281.71/x
  3. Step 3: Cross multiply
    8,124,442.62x = 11,205,193.42 × 7,142,281.71
  4. Step 4: Simplify right side
    8,124,442.62x = 80,030,648,020,678.34
  5. Step 5: Solve for x
    x = 80,030,648,020,678.34/8,124,442.62
  6. Step 6: Final answer
    x = 9,850,601.67

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1.5x scale

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.