Home / 630,212,009.70-946,291,224.15-343,557,545.70

Finding the Fourth Proportional to 630,212,009.70, 946,291,224.15 and 343,557,545.70

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Solution

The fourth proportional to 630,212,009.70, 946,291,224.15 and 343,557,545.70 is: 515,866,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,212,009.70 : 946,291,224.15 = 343,557,545.70 : x
  2. Step 2: Convert to fraction form
    630,212,009.70/946,291,224.15 = 343,557,545.70/x
  3. Step 3: Cross multiply
    630,212,009.70x = 946,291,224.15 × 343,557,545.70
  4. Step 4: Simplify right side
    630,212,009.70x = 325,105,490,486,422,528
  5. Step 5: Solve for x
    x = 325,105,490,486,422,528/630,212,009.70
  6. Step 6: Final answer
    x = 515,866,859.85

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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.