Home / 523,298,747.16-722,183,979.96-288,349,123.32

Finding the Fourth Proportional to 523,298,747.16, 722,183,979.96 and 288,349,123.32

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Solution

The fourth proportional to 523,298,747.16, 722,183,979.96 and 288,349,123.32 is: 397,939,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,298,747.16 : 722,183,979.96 = 288,349,123.32 : x
  2. Step 2: Convert to fraction form
    523,298,747.16/722,183,979.96 = 288,349,123.32/x
  3. Step 3: Cross multiply
    523,298,747.16x = 722,183,979.96 × 288,349,123.32
  4. Step 4: Simplify right side
    523,298,747.16x = 208,241,117,497,214,464
  5. Step 5: Solve for x
    x = 208,241,117,497,214,464/523,298,747.16
  6. Step 6: Final answer
    x = 397,939,262.47

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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.