Home / 28,139,840,327.39-42,211,118,031.92-9,252,709,847.42

Finding the Fourth Proportional to 28,139,840,327.39, 42,211,118,031.92 and 9,252,709,847.42

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Solution

The fourth proportional to 28,139,840,327.39, 42,211,118,031.92 and 9,252,709,847.42 is: 13,879,511,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,840,327.39 : 42,211,118,031.92 = 9,252,709,847.42 : x
  2. Step 2: Convert to fraction form
    28,139,840,327.39/42,211,118,031.92 = 9,252,709,847.42/x
  3. Step 3: Cross multiply
    28,139,840,327.39x = 42,211,118,031.92 × 9,252,709,847.42
  4. Step 4: Simplify right side
    28,139,840,327.39x = 390,567,227,484,729,573,376
  5. Step 5: Solve for x
    x = 390,567,227,484,729,573,376/28,139,840,327.39
  6. Step 6: Final answer
    x = 13,879,511,146.50

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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.