Home / 660,506,493.44-911,445,051.26-388,884,092.02

Finding the Fourth Proportional to 660,506,493.44, 911,445,051.26 and 388,884,092.02

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Solution

The fourth proportional to 660,506,493.44, 911,445,051.26 and 388,884,092.02 is: 536,628,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,506,493.44 : 911,445,051.26 = 388,884,092.02 : x
  2. Step 2: Convert to fraction form
    660,506,493.44/911,445,051.26 = 388,884,092.02/x
  3. Step 3: Cross multiply
    660,506,493.44x = 911,445,051.26 × 388,884,092.02
  4. Step 4: Simplify right side
    660,506,493.44x = 354,446,481,181,875,520
  5. Step 5: Solve for x
    x = 354,446,481,181,875,520/660,506,493.44
  6. Step 6: Final answer
    x = 536,628,306.77

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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.