Home / 424,078,642.80-636,117,964.20-294,938,479.80

Finding the Fourth Proportional to 424,078,642.80, 636,117,964.20 and 294,938,479.80

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Solution

The fourth proportional to 424,078,642.80, 636,117,964.20 and 294,938,479.80 is: 442,407,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,078,642.80 : 636,117,964.20 = 294,938,479.80 : x
  2. Step 2: Convert to fraction form
    424,078,642.80/636,117,964.20 = 294,938,479.80/x
  3. Step 3: Cross multiply
    424,078,642.80x = 636,117,964.20 × 294,938,479.80
  4. Step 4: Simplify right side
    424,078,642.80x = 187,615,665,334,618,848
  5. Step 5: Solve for x
    x = 187,615,665,334,618,848/424,078,642.80
  6. Step 6: Final answer
    x = 442,407,719.70

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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.