Home / 590,438,642.40-885,315,318.56-279,543,648.32

Finding the Fourth Proportional to 590,438,642.40, 885,315,318.56 and 279,543,648.32

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Solution

The fourth proportional to 590,438,642.40, 885,315,318.56 and 279,543,648.32 is: 419,153,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,438,642.40 : 885,315,318.56 = 279,543,648.32 : x
  2. Step 2: Convert to fraction form
    590,438,642.40/885,315,318.56 = 279,543,648.32/x
  3. Step 3: Cross multiply
    590,438,642.40x = 885,315,318.56 × 279,543,648.32
  4. Step 4: Simplify right side
    590,438,642.40x = 247,484,274,063,845,376
  5. Step 5: Solve for x
    x = 247,484,274,063,845,376/590,438,642.40
  6. Step 6: Final answer
    x = 419,153,246.91

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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.