Home / 518,538,701.70-778,063,416.66-242,149,746.72

Finding the Fourth Proportional to 518,538,701.70, 778,063,416.66 and 242,149,746.72

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Solution

The fourth proportional to 518,538,701.70, 778,063,416.66 and 242,149,746.72 is: 363,343,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,538,701.70 : 778,063,416.66 = 242,149,746.72 : x
  2. Step 2: Convert to fraction form
    518,538,701.70/778,063,416.66 = 242,149,746.72/x
  3. Step 3: Cross multiply
    518,538,701.70x = 778,063,416.66 × 242,149,746.72
  4. Step 4: Simplify right side
    518,538,701.70x = 188,407,859,276,316,832
  5. Step 5: Solve for x
    x = 188,407,859,276,316,832/518,538,701.70
  6. Step 6: Final answer
    x = 363,343,871.26

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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.