Home / 553,539,003.40-763,899,766.95-306,036,300.88

Finding the Fourth Proportional to 553,539,003.40, 763,899,766.95 and 306,036,300.88

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Solution

The fourth proportional to 553,539,003.40, 763,899,766.95 and 306,036,300.88 is: 422,338,909.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,539,003.40 : 763,899,766.95 = 306,036,300.88 : x
  2. Step 2: Convert to fraction form
    553,539,003.40/763,899,766.95 = 306,036,300.88/x
  3. Step 3: Cross multiply
    553,539,003.40x = 763,899,766.95 × 306,036,300.88
  4. Step 4: Simplify right side
    553,539,003.40x = 233,781,058,920,472,096
  5. Step 5: Solve for x
    x = 233,781,058,920,472,096/553,539,003.40
  6. Step 6: Final answer
    x = 422,338,909.24

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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.