Home / 28,124,848,311.58-38,812,329,104.48-15,264,488,468.78

Finding the Fourth Proportional to 28,124,848,311.58, 38,812,329,104.48 and 15,264,488,468.78

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Solution

The fourth proportional to 28,124,848,311.58, 38,812,329,104.48 and 15,264,488,468.78 is: 21,065,014,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124,848,311.58 : 38,812,329,104.48 = 15,264,488,468.78 : x
  2. Step 2: Convert to fraction form
    28,124,848,311.58/38,812,329,104.48 = 15,264,488,468.78/x
  3. Step 3: Cross multiply
    28,124,848,311.58x = 38,812,329,104.48 × 15,264,488,468.78
  4. Step 4: Simplify right side
    28,124,848,311.58x = 592,450,350,061,829,357,568
  5. Step 5: Solve for x
    x = 592,450,350,061,829,357,568/28,124,848,311.58
  6. Step 6: Final answer
    x = 21,065,014,946.87

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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.