Home / 131,317,860.72-181,213,018.20-72,577,488.24

Finding the Fourth Proportional to 131,317,860.72, 181,213,018.20 and 72,577,488.24

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Solution

The fourth proportional to 131,317,860.72, 181,213,018.20 and 72,577,488.24 is: 100,153,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,317,860.72 : 181,213,018.20 = 72,577,488.24 : x
  2. Step 2: Convert to fraction form
    131,317,860.72/181,213,018.20 = 72,577,488.24/x
  3. Step 3: Cross multiply
    131,317,860.72x = 181,213,018.20 × 72,577,488.24
  4. Step 4: Simplify right side
    131,317,860.72x = 13,151,985,697,345,404
  5. Step 5: Solve for x
    x = 13,151,985,697,345,404/131,317,860.72
  6. Step 6: Final answer
    x = 100,153,822.38

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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.