Home / 395,293,431.48-545,186,858.59-347,506,510.32

Finding the Fourth Proportional to 395,293,431.48, 545,186,858.59 and 347,506,510.32

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Solution

The fourth proportional to 395,293,431.48, 545,186,858.59 and 347,506,510.32 is: 479,279,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,293,431.48 : 545,186,858.59 = 347,506,510.32 : x
  2. Step 2: Convert to fraction form
    395,293,431.48/545,186,858.59 = 347,506,510.32/x
  3. Step 3: Cross multiply
    395,293,431.48x = 545,186,858.59 × 347,506,510.32
  4. Step 4: Simplify right side
    395,293,431.48x = 189,455,982,700,934,208
  5. Step 5: Solve for x
    x = 189,455,982,700,934,208/395,293,431.48
  6. Step 6: Final answer
    x = 479,279,359.62

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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.