Home / 519,051,710.65-779,018,465.18-212,563,781.05

Finding the Fourth Proportional to 519,051,710.65, 779,018,465.18 and 212,563,781.05

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Solution

The fourth proportional to 519,051,710.65, 779,018,465.18 and 212,563,781.05 is: 319,026,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,051,710.65 : 779,018,465.18 = 212,563,781.05 : x
  2. Step 2: Convert to fraction form
    519,051,710.65/779,018,465.18 = 212,563,781.05/x
  3. Step 3: Cross multiply
    519,051,710.65x = 779,018,465.18 × 212,563,781.05
  4. Step 4: Simplify right side
    519,051,710.65x = 165,591,110,465,365,760
  5. Step 5: Solve for x
    x = 165,591,110,465,365,760/519,051,710.65
  6. Step 6: Final answer
    x = 319,026,230.08

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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.