Home / 711,788,041,039.02-982,348,982,921.48-399,012,902,364.48

Finding the Fourth Proportional to 711,788,041,039.02, 982,348,982,921.48 and 399,012,902,364.48

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Solution

The fourth proportional to 711,788,041,039.02, 982,348,982,921.48 and 399,012,902,364.48 is: 550,683,484,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,788,041,039.02 : 982,348,982,921.48 = 399,012,902,364.48 : x
  2. Step 2: Convert to fraction form
    711,788,041,039.02/982,348,982,921.48 = 399,012,902,364.48/x
  3. Step 3: Cross multiply
    711,788,041,039.02x = 982,348,982,921.48 × 399,012,902,364.48
  4. Step 4: Simplify right side
    711,788,041,039.02x = 391,969,918,810,294,709,125,120
  5. Step 5: Solve for x
    x = 391,969,918,810,294,709,125,120/711,788,041,039.02
  6. Step 6: Final answer
    x = 550,683,484,704.41

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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.