Home / 386,688,297,839.78-533,605,807,034.31-213,063,721,083.61

Finding the Fourth Proportional to 386,688,297,839.78, 533,605,807,034.31 and 213,063,721,083.61

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Solution

The fourth proportional to 386,688,297,839.78, 533,605,807,034.31 and 213,063,721,083.61 is: 294,014,686,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688,297,839.78 : 533,605,807,034.31 = 213,063,721,083.61 : x
  2. Step 2: Convert to fraction form
    386,688,297,839.78/533,605,807,034.31 = 213,063,721,083.61/x
  3. Step 3: Cross multiply
    386,688,297,839.78x = 533,605,807,034.31 × 213,063,721,083.61
  4. Step 4: Simplify right side
    386,688,297,839.78x = 113,692,038,838,552,830,672,896
  5. Step 5: Solve for x
    x = 113,692,038,838,552,830,672,896/386,688,297,839.78
  6. Step 6: Final answer
    x = 294,014,686,955.07

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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.