Home / 710,578,933.05-980,533,120.96-393,032,344.48

Finding the Fourth Proportional to 710,578,933.05, 980,533,120.96 and 393,032,344.48

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Solution

The fourth proportional to 710,578,933.05, 980,533,120.96 and 393,032,344.48 is: 542,348,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,578,933.05 : 980,533,120.96 = 393,032,344.48 : x
  2. Step 2: Convert to fraction form
    710,578,933.05/980,533,120.96 = 393,032,344.48/x
  3. Step 3: Cross multiply
    710,578,933.05x = 980,533,120.96 × 393,032,344.48
  4. Step 4: Simplify right side
    710,578,933.05x = 385,381,231,371,200,256
  5. Step 5: Solve for x
    x = 385,381,231,371,200,256/710,578,933.05
  6. Step 6: Final answer
    x = 542,348,236.69

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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.