Home / 684,405,763.44-944,480,204.60-371,139,894.38

Finding the Fourth Proportional to 684,405,763.44, 944,480,204.60 and 371,139,894.38

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Solution

The fourth proportional to 684,405,763.44, 944,480,204.60 and 371,139,894.38 is: 512,173,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,405,763.44 : 944,480,204.60 = 371,139,894.38 : x
  2. Step 2: Convert to fraction form
    684,405,763.44/944,480,204.60 = 371,139,894.38/x
  3. Step 3: Cross multiply
    684,405,763.44x = 944,480,204.60 × 371,139,894.38
  4. Step 4: Simplify right side
    684,405,763.44x = 350,534,283,372,666,688
  5. Step 5: Solve for x
    x = 350,534,283,372,666,688/684,405,763.44
  6. Step 6: Final answer
    x = 512,173,190.38

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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.