Home / 646,274,910.64-968,019,953.63-437,869,879.63

Finding the Fourth Proportional to 646,274,910.64, 968,019,953.63 and 437,869,879.63

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Solution

The fourth proportional to 646,274,910.64, 968,019,953.63 and 437,869,879.63 is: 655,861,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,274,910.64 : 968,019,953.63 = 437,869,879.63 : x
  2. Step 2: Convert to fraction form
    646,274,910.64/968,019,953.63 = 437,869,879.63/x
  3. Step 3: Cross multiply
    646,274,910.64x = 968,019,953.63 × 437,869,879.63
  4. Step 4: Simplify right side
    646,274,910.64x = 423,866,780,575,406,272
  5. Step 5: Solve for x
    x = 423,866,780,575,406,272/646,274,910.64
  6. Step 6: Final answer
    x = 655,861,419.96

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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.