Home / 519,595,109.18-779,648,739.48-243,265,034.78

Finding the Fourth Proportional to 519,595,109.18, 779,648,739.48 and 243,265,034.78

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Solution

The fourth proportional to 519,595,109.18, 779,648,739.48 and 243,265,034.78 is: 365,017,442.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,595,109.18 : 779,648,739.48 = 243,265,034.78 : x
  2. Step 2: Convert to fraction form
    519,595,109.18/779,648,739.48 = 243,265,034.78/x
  3. Step 3: Cross multiply
    519,595,109.18x = 779,648,739.48 × 243,265,034.78
  4. Step 4: Simplify right side
    519,595,109.18x = 189,661,277,725,785,376
  5. Step 5: Solve for x
    x = 189,661,277,725,785,376/519,595,109.18
  6. Step 6: Final answer
    x = 365,017,442.19

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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.