Home / 1,398,035,212.76-1,929,329,496.02-762,996,435.39

Finding the Fourth Proportional to 1,398,035,212.76, 1,929,329,496.02 and 762,996,435.39

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Solution

The fourth proportional to 1,398,035,212.76, 1,929,329,496.02 and 762,996,435.39 is: 1,052,957,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,035,212.76 : 1,929,329,496.02 = 762,996,435.39 : x
  2. Step 2: Convert to fraction form
    1,398,035,212.76/1,929,329,496.02 = 762,996,435.39/x
  3. Step 3: Cross multiply
    1,398,035,212.76x = 1,929,329,496.02 × 762,996,435.39
  4. Step 4: Simplify right side
    1,398,035,212.76x = 1,472,071,528,152,230,144
  5. Step 5: Solve for x
    x = 1,472,071,528,152,230,144/1,398,035,212.76
  6. Step 6: Final answer
    x = 1,052,957,403.88

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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.