Home / 720,296,944.90-993,626,350.32-438,125,688.82

Finding the Fourth Proportional to 720,296,944.90, 993,626,350.32 and 438,125,688.82

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Solution

The fourth proportional to 720,296,944.90, 993,626,350.32 and 438,125,688.82 is: 604,380,224.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,296,944.90 : 993,626,350.32 = 438,125,688.82 : x
  2. Step 2: Convert to fraction form
    720,296,944.90/993,626,350.32 = 438,125,688.82/x
  3. Step 3: Cross multiply
    720,296,944.90x = 993,626,350.32 × 438,125,688.82
  4. Step 4: Simplify right side
    720,296,944.90x = 435,333,229,163,652,672
  5. Step 5: Solve for x
    x = 435,333,229,163,652,672/720,296,944.90
  6. Step 6: Final answer
    x = 604,380,224.36

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1.5x scale

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.