Home / 515,877,028,740.80-711,912,449,962.55-284,385,462,485.46

Finding the Fourth Proportional to 515,877,028,740.80, 711,912,449,962.55 and 284,385,462,485.46

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Solution

The fourth proportional to 515,877,028,740.80, 711,912,449,962.55 and 284,385,462,485.46 is: 392,453,123,617.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,877,028,740.80 : 711,912,449,962.55 = 284,385,462,485.46 : x
  2. Step 2: Convert to fraction form
    515,877,028,740.80/711,912,449,962.55 = 284,385,462,485.46/x
  3. Step 3: Cross multiply
    515,877,028,740.80x = 711,912,449,962.55 × 284,385,462,485.46
  4. Step 4: Simplify right side
    515,877,028,740.80x = 202,457,551,331,756,712,394,752
  5. Step 5: Solve for x
    x = 202,457,551,331,756,712,394,752/515,877,028,740.80
  6. Step 6: Final answer
    x = 392,453,123,617.34

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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.