Home / 667,776,724.34-921,528,485.01-370,415,887.95

Finding the Fourth Proportional to 667,776,724.34, 921,528,485.01 and 370,415,887.95

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Solution

The fourth proportional to 667,776,724.34, 921,528,485.01 and 370,415,887.95 is: 511,172,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,776,724.34 : 921,528,485.01 = 370,415,887.95 : x
  2. Step 2: Convert to fraction form
    667,776,724.34/921,528,485.01 = 370,415,887.95/x
  3. Step 3: Cross multiply
    667,776,724.34x = 921,528,485.01 × 370,415,887.95
  4. Step 4: Simplify right side
    667,776,724.34x = 341,348,792,046,197,376
  5. Step 5: Solve for x
    x = 341,348,792,046,197,376/667,776,724.34
  6. Step 6: Final answer
    x = 511,172,042.40

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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.