Home / 518,856,989,518.64-778,402,840,447.58-280,086,513,611.08

Finding the Fourth Proportional to 518,856,989,518.64, 778,402,840,447.58 and 280,086,513,611.08

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Solution

The fourth proportional to 518,856,989,518.64, 778,402,840,447.58 and 280,086,513,611.08 is: 420,193,120,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,856,989,518.64 : 778,402,840,447.58 = 280,086,513,611.08 : x
  2. Step 2: Convert to fraction form
    518,856,989,518.64/778,402,840,447.58 = 280,086,513,611.08/x
  3. Step 3: Cross multiply
    518,856,989,518.64x = 778,402,840,447.58 × 280,086,513,611.08
  4. Step 4: Simplify right side
    518,856,989,518.64x = 218,020,137,765,924,465,803,264
  5. Step 5: Solve for x
    x = 218,020,137,765,924,465,803,264/518,856,989,518.64
  6. Step 6: Final answer
    x = 420,193,120,975.76

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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.